SANTOS CALADO MARIANITO DA ASCENSAO, GUILHERME ANTONIO

2019 Ascensão, Guilherme; Marchi, Maurizio; Segata, Monica; Faleschini, Flora; Pontikes, Yiannis

2020 Ascensao, G.; Marchi, M.; Segata, M.; Faleschini, F.; Pontikes, Y.

2019 Ascensao, G.; Beersaerts, G.; Marchi, M.; Segata, M.; Faleschini, F.; Pontikes, Y.

2021 Zhou, B; Carrillo-Larco, Rm; Danaei, G; Riley, Lm; Paciorek, Cj; Stevens, Ga; Gregg, Ew; Bennett, Je; Solomon, B; Singleton, Rk; Sophiea, Mk; Iurilli, Mlc; Lhoste, Vpf; Cowan, Mj; Savin, S; Woodward, M; Balanova, Y; Cifkova, R; Damasceno, A; Elliott, P; Farzadfar, F; He, J; Ikeda, N; Kengne, Ap; Khang, Yh; Kim, Hc; Laxmaiah, A; Lin, Hh; Maira, Pm; Miranda, Jj; Neuhauser, H; Sundstrom, J; Varghese, C; Widyahening, Is; Zdrojewski, T; Ezzati, M; Abarca-Gomez, L; Abdeen, Za; Rahim, Hfa; Abu-Rmeileh, Nm; Acosta-Cazares, B; Adams, Rj; Aekplakorn, W; Afsana, K; Afzal, S; Agdeppa, Ia; Aghazadeh-Attari, J; Aguilar-Salinas, Ca; Agyemang, C; Ahmad, Na; Ahmadi, A; Ahmadi, N; Ahmadi, N; Ahmadizar, F; Ahmed, Sh; Ahrens, W; Ajlouni, K; Al-Raddadi, R; Alarouj, M; Albuhairan, F; Aldhukair, S; Ali, Mm; Alkandari, A; Alkerwi, A; Allin, K; Aly, E; Amarapurkar, Dn; Amougou, N; Amouyel, P; Andersen, Lb; Anderssen, Sa; Anjana, Rm; Ansari-Moghaddam, A; Ansong, D; Aounallah-Skhiri, H; Araujo, J; Ariansen, I; Aris, T; Arku, Re; Arlappa, N; Aryal, Kk; Aspelund, T; Assah, Fk; Assuncao, Mcf; Auvinen, J; Avdicova, M; Azevedo, A; Azimi-Nezhad, M; Azizi, F; Azmin, M; Babu, Bv; Bahijri, S; Balakrishna, N; Balanova, Y; Bamoshmoosh, M; Banach, M; Banadinovic, M; Bandosz, P; Banegas, Jr; Baran, J; Barbagallo, Cm; Barcelo, A; Barkat, A; Barreto, M; Barros, Ajd; Barros, Mvg; Bartosiewicz, A; Basit, A; Bastos, Jld; Bata, I; Batieha, Am; Batyrbek, A; Baur, La; Beaglehole, R; Belavendra, A; Ben Romdhane, H; Benet, M; Bennett, Je; Benson, Ls; Berkinbayev, S; Bernabe-Ortiz, A; Bettiol, H; Bezerra, J; Bhagyalaxmi, A; Bhargava, Sk; Bia, D; Biasch, K; Lele, Ecb; Bikbov, Mm; Bista, B; Bjerregaard, P; Bjertness, E; Bjertness, Mb; Bjorkelund, C; Bloch, Kv; Blokstra, A; Bo, S; Bobak, M; Boeing, H; Boggia, Jg; Boissonnet, Cp; Bojesen, Se; Bongard, V; Bonilla-Vargas, A; Bopp, M; Borghs, H; Bovet, P; Boyer, Cb; Braeckman, L; Brajkovich, I; Branca, F; Breckenkamp, J; Brenner, H; Brewster, Lm; Briceno, Y; Brito, M; Bruno, G; Bueno-de-Mesquita, Hb; Bueno, G; Bugge, A; Burns, C; Bursztyn, M; de Leon, Ac; Cacciottolo, J; Cameron, C; Can, G; Candido, Apc; Capanzana, Mv; Capkova, N; Capuano, E; Capuano, V; Cardoso, Vc; Carlsson, Ac; Carvalho, J; Casanueva, Ff; Censi, L; Cervantes-Loaiza, M; Chadjigeorgiou, Ca; Chamukuttan, S; Chan, Aw; Chan, Q; Chaturvedi, Hk; Chaturvedi, N; Chee, Ml; Chen, Cj; Chen, Ff; Chen, Hs; Chen, Sh; Chen, Zm; Cheng, Cy; Cheraghian, B; Dekkaki, Ic; Chetrit, A; Chien, Kl; Chiolero, A; Chiou, St; Chirita-Emandi, A; Chirlaque, Md; Cho, B; Christensen, K; Christofaro, Dg; Chudek, J; Cifkova, R; Cinteza, E; Claessens, F; Clarke, J; Clays, E; Cohen, E; Concin, H; Cooper, C; Coppinger, Tc; Costanzo, S; Cottel, D; Cowell, C; Craig, Cl; Crampin, Ac; Crujeiras, Ab; Cruz, Jj; Csilla, S; Cui, Lf; Cureau, Fv; Cuschieri, S; D'Arrigo, G; D'Orsi, E; Dallongeville, J; Damasceno, A; Danaei, G; Dankner, R; Dantoft, Tm; Dauchet, L; Davletov, K; De Backer, G; De Bacquer, D; De Curtis, A; de Gaetano, G; De Henauw, S; de Oliveira, Pd; De Ridder, D; De Smedt, D; Deepa, M; Deev, Ad; Degennaro, V; Delisle, H; Demarest, S; Dennison, E; Deschamps, V; Dhimal, M; Di Castelnuovo, Af; Dias-da-Costa, Js; Diaz, A; Dickerson, Tt; Dika, Z; Djalalinia, S; Do, Htp; Dobson, Aj; Donfrancesco, C; Donoso, Sp; Doring, A; Dorobantu, M; Dorr, M; Doua, K; Dragano, N; Drygas, W; Duante, Ca; Duboz, P; Duda, Rb; Dulskiene, V; Dushpanova, A; Dzakula, A; Dzerve, V; Dziankowska-Zaborszczyk, E; Eddie, R; Eftekhar, E; Eggertsen, R; Eghtesad, S; Eiben, G; Ekelund, U; El-Khateeb, M; El Ati, J; Eldemire-Shearer, D; Eliasen, M; Elliott, P; Elosua, R; Erasmus, Rt; Erbel, R; Erem, C; Eriksen, L; Eriksson, Jg; Escobedo-de la Pena, J; Eslami, S; Esmaeili, A; Evans, A; Faeh, D; Fakhretdinova, Aa; Fall, Ch; Faramarzi, E; Farjam, M; Farzadfar, F; Fattahi, Mr; Fawwad, A; Felix-Redondo, Fj; Felix, Sb; Ferguson, Ts; Fernandes, Ra; Fernandez-Berges, D; Ferrante, D; Ferrao, T; Ferrari, M; Ferrario, Mm; Ferreccio, C; Ferreira, Hs; Ferrer, E; Ferrieres, J; Figueiro, Th; Fink, G; Fischer, K; Foo, Lh; Forsner, M; Fouad, Hm; Francis, Dk; Grego, Franco; Frikke-Schmidt, R; Frontera, G; Fuchs, Fd; Fuchs, Sc; Fujita, Y; Fumihiko, M; Furdela, V; Furer, A; Furusawa, T; Gaciong, Z; Galbarczyk, A; Galenkamp, H; Galvano, F; Gao, Jl; Gao, P; Garcia-de-la-Hera, M; Garcia, P; Gareta, D; Garnett, Sp; Gaspoz, Jm; Gasull, M; Gazzinelli, A; Gehring, U; Geleijnse, Jm; George, R; Ghanbari, A; Ghasemi, E; Gheorghe-Fronea, Of; Ghimire, A; Gialluisi, A; Giampaoli, S; Gieger, C; Gill, Tk; Giovannelli, J; Gironella, G; Giwercman, A; Gkiouras, K; Goldberg, M; Goldsmith, Ra; Gomez, Lf; Gomula, A; da Silva, Bgc; Goncalves, H; Goncalves, M; Gonzalez-Chica, Da; Gonzalez-Gross, M; Gonzalez-Rivas, Jp; Gonzalez-Villalpando, C; Gonzalez-Villalpando, Me; Gonzalez, Ar; Gorbea, Mb; Gottrand, F; Graff-Iversen, S; Grafnetter, D; Grajda, A; Grammatikopoulou, Mg; Gregor, Rd; Grodzicki, T; Grosso, G; Gruden, G; Gu, Df; Guan, Op; Gudmundsson, Ef; Gudnason, V; Guerrero, R; Guessous, I; Guimaraes, Al; Gulliford, Mc; Gunnlaugsdottir, J; Gunter, Mj; Gupta, Pc; Gupta, R; Gureje, O; Gurzkowska, B; Gutierrez, L; Gutzwiller, F; Ha, S; Hadaegh, F; Haghshenas, R; Hakimi, H; Halkjaer, J; Hambleton, Ir; Hamzeh, B; Hange, D; Hanif, Aam; Hantunen, S; Hao, J; Hardman, Cm; Kumar, Rh; Hashemi-Shahri, Sm; Hata, J; Haugsgjerd, T; Hayes, Aj; He, J; He, Yn; Heier, M; Hendriks, Me; Henrique, Rd; Henriques, A; Cadena, Lh; Herrala, S; Heshmat, R; Hill, Ag; Ho, Sy; Ho, Sc; Hobbs, M; Holdsworth, M; Homayounfar, R; Dinc, Gh; Horimoto, Arvr; Hormiga, Cm; Horta, Bl; Houti, L; Howitt, C; Htay, Tt; Htet, As; Htike, Mmt; Hu, Yh; Huerta, Jm; Huhtaniemi, It; Huiart, L; Huisman, M; Husseini, As; Huybrechts, I; Hwalla, N; Iacoviello, L; Iannone, Ag; Ibrahim, Mm; Wong, Ni; Ikeda, N; Ikram, Ma; Iotova, V; Irazola, Ve; Ishida, T; Isiguzo, Gc; Islam, M; Islam, Sms; Iwasaki, M; Jackson, Rt; Jacobs, Jm; Jaddou, Hy; Jafar, T; James, K; Jamrozik, K; Janszky, I; Janus, E; Jarvelin, Mr; Jasienska, G; Jelakovic, A; Jelakovic, B; Jennings, G; Jha, Ak; Jiang, Cq; Jimenez, Ro; Jockel, Kh; Joffres, M; Johansson, M; Jokelainen, Jj; Jonas, Jb; Jorgensen, T; Joshi, P; Joukar, F; Jozwiak, J; Juolevi, A; Jurak, G; Juresa, V; Kaaks, R; Kafatos, A; Kajantie, Eo; Kalmatayeva, Z; Kalpourtzi, N; Kalter-Leibovici, O; Kampmann, Fb; Kannan, S; Karaglani, E; Karhus, Ll; Karki, Kb; Katibeh, M; Katz, J; Kauhanen, J; Kaur, P; Kavousi, M; Kazakbaeva, Gm; Keil, U; Boker, Lk; Keinanen-Kiukaanniemi, S; Kelishadi, R; Kemper, Hcg; Kengne, Ap; Keramati, M; Kerimkulova, A; Kersting, M; Key, T; Khader, Ys; Khalili, D; Khang, Yh; Khaw, Kt; Kheiri, B; Kheradmand, M; Khosravi, A; Kiechl-Kohlendorfer, U; Kiechl, S; Killewo, J; Kim, Dw; Kim, Hc; Kim, J; Klakk, H; Klimek, M; Klumbiene, J; Knoflach, M; Kolle, E; Kolsteren, P; Kontto, Jp; Korpelainen, R; Korrovits, P; Kos, J; Koskinen, S; Kouda, K; Kowlessur, S; Koziel, S; Kratenova, J; Kriaucioniene, V; Kristensen, Pl; Krokstad, S; Kromhout, D; Kruger, Hs; Kubinova, R; Kuciene, R; Kujala, Um; Kulaga, Z; Kumar, Rk; Kurjata, P; Kusuma, Ys; Kutsenko, V; Kuulasmaa, K; Kyobutungi, C; Laatikainen, T; Lachat, C; Laid, Y; Lam, Th; Landrove, O; Lanska, V; Lappas, G; Larijani, B; Latt, Ts; Laxmaiah, A; Le Coroller, G; Bao, Kln; Le, THUY DUNG; Lee, J; Lee, J; Lehmann, N; Lehtimaki, T; Lemogoum, D; Levitt, Ns; Li, Yp; Lilly, Cl; Lim, Wy; Lima-Costa, Mf; Lin, Hh; Lin, X; Lin, Yt; Lind, L; Lingam, V; Linneberg, A; Lissner, L; Litwin, M; Lo, Wc; Loit, Hm; Lopez-Garcia, E; Lopez, T; Lotufo, Pa; Lozano, Je; Lovrencic, Il; Lukrafka, Jl; Luksiene, D; Lundqvist, A; Lundqvist, R; Lunet, N; Lustigova, M; Luszczki, E; Ma, Gs; Ma, J; Machado-Coelho, Gll; Machado-Rodrigues, Am; Macia, E; Macieira, Lm; Madar, Aa; Maggi, S; Magliano, Dj; Magriplis, E; Mahasampath, G; Maire, B; Majer, M; Makdisse, M; Malekzadeh, F; Malekzadeh, R; Malhotra, R; Mallikharjuna, K; Malyutina, Sk; Maniego, Lv; Manios, Y; Mann, Ji; Mansour-Ghanaei, F; Manzato, E; Marcil, A; Margozzini, P; Marild, Sb; Glavic, Mm; Marques-Vidal, P; Marques, Lp; Marrugat, J; Martorell, R; Mascarenhas, Lp; Matasin, M; Mathiesen, Eb; Mathur, P; Matijasevich, A; Matlosz, P; Matsha, Te; Mavrogianni, C; Mbanya, Jcn; Posso, Ajm; Mcfarlane, Sr; Mcgarvey, St; Mclachlan, S; Mclean, Rm; Mclean, Sb; Mcnulty, Ba; Benchekor, Sm; Medzioniene, J; Mehdipour, P; Mehlig, K; Mehrparvar, Ah; Meirhaeghe, A; Meisinger, C; Montano, Cm; Menezes, Amb; Menon, Gr; Mereke, A; Meshram, Ii; Metspalu, A; Meyer, He; Mi, J; Michels, N; Mikkel, K; Milkowska, K; Miller, Jc; Minderico, Cs; Mini, Gk; Miranda, Jj; Mirjalili, Mr; Mirrakhimov, E; Misigoj-Durakovic, M; Modesti, Pa; Moghaddam, Ss; Mohajer, B; Mohamed, Mk; Mohamed, Sf; Mohammad, K; Mohammadi, Mr; Mohammadi, Z; Mohammadifard, N; Mohammadpourhodki, R; Mohan, V; Mohanna, S; Yusoff, Mfm; Mohebbi, I; Mohebi, F; Moitry, M; Mollehave, Lt; Molnar, D; Momenan, A; Mondo, Ck; Monterrubio-Flores, E; Monyeki, Kdk; Moon, Js; Moosazadeh, M; Moreira, Lb; Morejon, A; Moreno, La; Morgan, K; Moschonis, G; Mossakowska, M; Mostafa, A; Mostafavi, Sa; Mota, J; Motlagh, Me; Motta, J; Moura-dos-Santos, Ma; Mridha, Mk; Msyamboza, Kp; Mu, Tt; Muhihi, Aj; Muiesan, Ml; Muller-Nurasyid, M; Murphy, N; Mursu, J; Musa, Ki; Milanovic, Sm; Musil, V; Mustafa, N; Nabipour, I; Naderimagham, S; Nagel, G; Naidu, Bm; Najafi, F; Nakamura, H; Namesna, J; Nang, Eek; Nangia, Vb; Narake, S; Ndiaye, Nc; Neal, Wa; Nejatizadeh, A; Nenko, I; Neovius, M; Neuhauser, Hk; Nguyen, Ct; Nguyen, Nd; Nguyen, Qv; Nguyen, Qn; Nieto-Martinez, Re; Niiranen, Tj; Nikitin, Yp; Ninomiya, T; Nishtar, S; Njelekela, Ma; Noale, M; Noboa, Oa; Noorbala, Aa; Norat, T; Nordendahl, M; Nordestgaard, Bg; Noto, D; Nowak-Szczepanska, N; Al Nsour, M; Nunes, B; O'Neill, Tw; O'Reilly, D; Ochimana, C; Oda, E; Odili, An; Oh, K; Ohara, K; Ohtsuka, R; Olie, V; Olinto, Mta; Oliveira, Io; Omar, Ma; Onat, A; Ong, Sk; Ono, Lm; Ordunez, P; Ornelas, R; Ortiz, Pj; Osmond, C; Ostojic, Sm; Ostovar, A; Otero, Ja; Overvad, K; Owusu-Dabo, E; Paccaud, Fm; Padez, C; Pahomova, E; de Paiva, Km; Pajak, A; Palli, D; Palmieri, L; Pan, Wh; Panda-Jonas, S; Panza, F; Paoli, M; Papandreou, D; Park, Sw; Park, S; Parnell, Wr; Parsaeian, M; Pasquet, P; Patel, Nd; Pavlyshyn, H; Pecin, I; Pednekar, Ms; Pedro, Jm; Peer, N; Peixoto, Sv; Peltonen, M; Pereira, Ac; Peres, Kgda; Peres, Ma; Peters, A; Petkeviciene, J; Peykari, N; Pham, St; Pichardo, Rn; Pigeot, I; Pikhart, H; Pilav, A; Pilotto, L; Pitakaka, F; Piwonska, A; Pizarro, An; Plans-Rubio, P; Polasek, O; Porta, M; Poudyal, A; Pourfarzi, F; Pourshams, A; Poustchi, H; Pradeepa, R; Price, Aj; Price, Jf; Providencia, R; Puhakka, Se; Puiu, M; Punab, M; Qasrawi, Rf; Qorbani, M; Queiroz, D; Bao, Tq; Radic, I; Radisauskas, R; Rahimikazerooni, S; Rahman, M; Raitakari, O; Raj, M; Rakhimova, Em; Rao, Sr; Ramachandran, A; Ramos, E; Rampal, L; Rampal, S; Reina, Dar; Rarra, V; Rech, Cr; Redon, J; Reganit, Pfm; Regecova, V; Revilla, L; Rezaianzadeh, A; Ribeiro, R; Riboli, E; Richter, A; Rigo, F; de Wit, Tfr; Ritti-Dias, Rm; Robitaille, C; Rodriguez-Artalejo, F; Rodriguez-Perez, Md; Rodriguez-Villamizar, La; Roggenbuck, U; Rojas-Martinez, R; Romaguera, D; Romeo, El; Rosengren, A; Roy, Jgr; Rubinstein, A; Ruidavets, Jb; Ruiz-Betancourt, Bs; Ruiz-Castell, M; Rusakova, Ia; Russo, P; Rutkowski, M; Sabanayagam, C; Sabbaghi, H; Sachdev, Hs; Sadjadi, A; Safarpour, Ar; Safi, S; Safiri, S; Saidi, O; Sakarya, S; Saki, N; Salanave, B; Martinez, Es; Salmeron, D; Salomaa, V; Salonen, Jt; Salvetti, M; Sanchez-Abanto, J; Sans, S; Santos, Da; Santos, Is; Santos, Lc; Santos, Mp; Santos, R; Saramies, Jl; Sardinha, Lb; Sarganas, G; Sarrafzadegan, N; Sathish, T; Saum, Ku; Savva, S; Sawada, N; Sbaraini, M; Scazufca, M; Schaan, Bd; Schargrodsky, H; Schipf, S; Schmidt, Co; Schnohr, P; Schottker, B; Schramm, S; Schultsz, C; Schutte, Ae; Sebert, S; Sein, Aa; Sen, A; Senbanjo, Io; Sepanlou, Sg; Servais, J; Shalnova, Sa; Shamah-Levy, T; Shamshirgaran, M; Shanthirani, Cs; Sharafkhah, M; Sharma, Sk; Shaw, Je; Shayanrad, A; Shayesteh, Aa; Shi, Zm; Shibuya, K; Shimizu-Furusawa, H; Shin, Dw; Shirani, M; Shiri, R; Shrestha, N; Si-Ramlee, K; Siani, A; Siantar, R; Sibai, Am; Silva, Crd; Silva, Das; Simon, M; Simons, J; Simons, La; Sjostrom, M; Slowikowska-Hilczer, J; Slusarczyk, P; Smeeth, L; So, Hk; Soares, Fc; Sobngwi, E; Soderberg, S; Soemantri, A; Sofat, R; Solfrizzi, V; Somi, Mh; Sonestedt, E; Song, Y; Sorensen, Tia; Sorgjerd, Ep; Soric, M; Jerome, Cs; Soumare, A; Sparboe-Nilsen, B; Sparrenberger, K; Staessen, Ja; Starc, G; Stavreski, B; Steene-Johannessen, J; Stehle, P; Stein, Ad; Stergiou, Gs; Stessman, J; Stieber, J; Stockl, D; Stocks, T; Stokwiszewski, J; Stronks, K; Strufaldi, Mw; Suka, M; Sun, Ca; Sundstrom, J; Sung, Yt; Suriyawongpaisal, P; Sy, Rg; Syddall, He; Sylva, Rc; Szklo, M; Tai, Es; Tammesoo, Ml; Tamosiunas, A; Tan, Ej; Tang, X; Tanser, F; Tao, Y; Tarawneh, Mr; Tarqui-Mamani, Cb; Taylor, A; Taylor, J; Tebar, Wr; Tell, Gs; Tello, T; Tham, Yc; Thankappan, Kr; Theobald, H; Theodoridis, X; Thijs, L; Thinggaard, M; Thomas, N; Thorand, B; Thuesen, Bh; Timmermans, Ej; Tjandrarini, Dh; Tjonneland, A; Toft, U; Tolonen, Hk; Tolstrup, Js; Topbas, M; Topor-Madry, R; Tormo, Mj; Tornaritis, Mj; Torrent, M; Torres-Collado, L; Touloumi, G; Traissac, P; Triantafyllou, A; Trichopoulos, D; Trichopoulou, A; Trinh, Oth; Trivedi, A; Tshepo, L; Tsugane, S; Tuliakova, Am; Tulloch-Reid, Mk; Tullu, F; Tuomainen, Tp; Tuomilehto, J; Turley, Ml; Twig, G; Tynelius, P; Tzourio, C; Ueda, P; Ugel, E; Ulmer, H; Uusitalo, Hmt; Valdivia, G; Valvi, D; van Dam, Rm; van den Born, Bj; Van der Heyden, J; van der Schouw, Yt; Van Herck, K; Minh, Hv; Van Schoor, Nm; van Valkengoed, Igm; van Zutphen, Em; Vanderschueren, D; Vanuzzo, D; Varbo, A; Vasan, Sk; Vega, T; Veidebaum, T; Velasquez-Melendez, G; Veronesi, G; Verschuren, Wmm; Verstraeten, R; Victora, Cg; Viet, L; Villalpando, S; Vineis, P; Vioque, J; Virtanen, Jk; Visvikis-Siest, S; Viswanathan, B; Vlasoff, T; Vollenweider, P; Voutilainen, A; Wade, An; Walton, J; Wambiya, Eoa; Bebakar, Wmw; Mohamud, Wnw; Wanderley, Rd; Wang, Md; Wang, Nl; Wang, Q; Wang, Xj; Wang, Yx; Wang, Yw; Wannamethee, Sg; Wareham, N; Wei, Wb; Weres, A; Werner, B; Whincup, Ph; Widhalm, K; Widyahening, Is; Wiecek, A; Wilks, Rj; Willeit, J; Willeit, P; Williams, Ea; Wilsgaard, T; Wojtyniak, B; Wong-McClure, Ra; Wong, A; Wong, Ty; Woo, J; Woodward, M; Wu, Fc; Wu, Sl; Wyszynska, J; Xu, Hq; Xu, L; Yaacob, Na; Yan, Wl; Yang, L; Yang, Xg; Yang, Y; Yasuharu, T; Ye, Xw; Yiallouros, Pk; Yoosefi, M; Yoshihara, A; You, Sl; Younger-Coleman, No; Yusoff, Af; Zainuddin, Aa; Zakavi, Sr; Zamani, F; Zambon, S; Zampelas, A; Zapata, Me; Zaw, Kk; Zdrojewski, T; Zejglicova, K; Vrkic, Tz; Zeng, Y; Zhang, Lx; Zhang, Zy; Zhao, D; Zhao, Mh; Zhen, Sq; Zheng, Yf; Zholdin, B; Zhu, D; Zins, M; Zitt, E; Zocalo, Y; Zoghlami, N; Cisneros, Jz