Calvert, C, Brockway, M, Zoega, H, Miller, J E, Been, J V, Amegah, A K, Racine-Poon, A, Oskoui, S E, Abok, I I, Aghaeepour, N, Akwaowo, C D, Alshaikh, B N, Ayede, A I, Bacchini, F, Barekatain, B, Barnes, R, Bebak, K, Berard, A, Bhutta, Z A, Brook, J R, Bryan, L R, Cajachagua-Torres, K N, Campbell-Yeo, M, Chu, D-T, Connor, K L, Cornette, L, Cortés, S, Daly, M, Debauche, C, Dedeke, I O F, Einarsdóttir, K, Engjom, H, Estrada-Gutierrez, G, Fantasia, I, Fiorentino, N M, Franklin, M, Fraser, A, Gachuno, O W, Gallo, L A, Gissler, M, Håberg, S E, Habibelahi, A, Häggström, J, Hookham, L, Hui, L, Huicho, L, Hunter, K J, Huq, S, Kc, A, Kadambari, S, Kelishadi, R, Khalili, N, Kippen, J, Le Doare, K, Llorca, J, Magee, L A, Magnus, M C, Man, K K C, Mburugu, P M, Mediratta, R P, Morris, A D, Muhajarine, N, Mulholland, R H, Bonnard, L N, Nakibuuka, V, Nassar, N, Nyadanu, S D, Oakley, L, Oladokun, A, Olayemi, O O, Olutekunbi, O A, Oluwafemi, R O, Ogunkunle, T O, Orton, C, Örtqvist, A K, Ouma, J, Oyapero, O, Palmer, K R, Pedersen, L H, Pereira, G, Pereyra, I, Philip, R K, Pruski, D, Przybylski, M, Quezada-Pinedo, H G, Regan, A K, Rhoda, N R, Rihs, T A, Riley, T, Rocha, T A H, Rolnik, D L, Saner, C, Schneuer, F J, Souter, V L, Stephansson, O, Sun, S, Swift, E M, Szabó, M, Temmerman, M, Tooke, L, Urquia, M L, von Dadelszen, P, Wellenius, G A, Whitehead, C, Wong, I C K, Wood, R, Wróblewska-Seniuk, K, Yeboah-Antwi, K, Yilgwan, C S, Zawiejska, A, Sheikh, A, Rodriguez, N, Burgner, D, Stock, S J & Azad, M B 2023, ' Changes in preterm birth and stillbirth during COVID-19 lockdowns in 26 countries ', Nature Human Behaviour . https://doi.org/10.1038/s41562-023-01522-y Calvert, C, Brockway, M, Zoega, H, Miller, J E, Been, J V, Amegah, A K, Racine-Poon, A, Oskoui, S E, Abok, I I, Aghaeepour, N, Akwaowo, C D, Alshaikh, B N, Ayede, A I, Bacchini, F, Barekatain, B, Barnes, R, Bebak, K, Berard, A, Bhutta, Z A, Brook, J R, Bryan, L R, Cajachagua-Torres, K N, Campbell-Yeo, M, Chu, D T, Connor, K L, Cornette, L, Cortés, S, Daly, M, Debauche, C, Dedeke, I O F, Einarsdóttir, K, Engjom, H, Estrada-Gutierrez, G, Fantasia, I, Fiorentino, N M, Franklin, M, Fraser, A, Gachuno, O W, Gallo, L A, Gissler, M, Håberg, S E, Habibelahi, A, Häggström, J, Hookham, L, Hui, L, Huicho, L, Hunter, K J, Huq, S, Kc, A, Kadambari, S, Kelishadi, R, Khalili, N, Kippen, J, Le Doare, K, Llorca, J, Magee, L A, Magnus, M C, Man, K K C, Mburugu, P M, Mediratta, R P, Morris, A D, Muhajarine, N, Mulholland, R H, Bonnard, L N, Nakibuuka, V, Nassar, N, Nyadanu, S D, Oakley, L, Oladokun, A, Olayemi, O O, Olutekunbi, O A, Oluwafemi, R O, Ogunkunle, T O, Orton, C, Örtqvist, A K, Ouma, J, Oyapero, O, Palmer, K R, Pedersen, L H, Pereira, G, Pereyra, I, Philip, R K, Pruski, D, Przybylski, M, Quezada-Pinedo, H G, Regan, A K, Rhoda, N R, Rihs, T A, Riley, T, Rocha, T A H, Rolnik, D L, Saner, C, Schneuer, F J, Souter, V L, Stephansson, O, Sun, S, Swift, E M, Szabó, M, Temmerman, M, Tooke, L, Urquia, M L, von Dadelszen, P, Wellenius, G A, Whitehead, C, Wong, I C K, Wood, R, Wróblewska-Seniuk, K, Yeboah-Antwi, K, Yilgwan, C S, Zawiejska, A, Sheikh, A, Rodriguez, N, Burgner, D, Stock, S J & Azad, M B 2023, ' Changes in preterm birth and stillbirth during COVID-19 lockdowns in 26 countries ', Nature Human Behaviour, vol. 7, no. 4, pp. 529-544 . https://doi.org/10.1038/s41562-023-01522-y Nature Human Behaviour, 7(4), 529-544. Nature Publishing Group Calvert, Clara; Brockway, Meredith Merilee; Zoega, Helga; Miller, Jessica E; Been, Jasper V; Amegah, Adeladza Kofi; Racine-Poon, Amy; Oskoui, Solmaz Eradat; Abok, Ishaya I; Aghaeepour, Nima; Akwaowo, Christie D; Alshaikh, Belal N; Ayede, Adejumoke I; Bacchini, Fabiana; Barekatain, Behzad; Barnes, Rodrigo; Bebak, Karolina; Berard, Anick; Bhutta, Zulfiqar A; Brook, Jeffrey R; ... (2023). Changes in preterm birth and stillbirth during COVID-19 lockdowns in 26 countries. Nature human behaviour, 7(4), pp. 529-544. Springer Nature 10.1038/s41562-023-01522-y iPOP Study Team 2023, ' Changes in preterm birth and stillbirth during COVID-19 lockdowns in 26 countries ', Nature Human Behaviour . https://doi.org/10.1038/s41562-023-01522-y Nature Human Behaviour Calvert, C, Brockway, M, Zoega, H, Miller, J E, Been, J V, Amegah, A K, Eradat Oskoui, S, Hunter, K, Mulholland, R, Wood, R, Sheikh, A & Stock, S J 2023, ' Changes in preterm birth and stillbirth during COVID-19 lockdowns in 26 countries ', Nature Human Behaviour, vol. 7, no. 4, pp. 529-544 . https://doi.org/10.1038/s41562-023-01522-y