Deshpande, Aniruddha, Miller-Petrie, Molly K., Abegaz, Kedir Hussein, Effiong, Andem, Abejie, Ayenew N., Abreu, Lucas Guimaraes, Abrigo, Michael R. M., Abualhasan, Ahmed, Accrombessi, Manfred Mario Kokou, Adamu, Abdu A., Adebayo, Oladimeji M., Adedeji, Isaac Akinkunmi, Adedoyin, Rufus Adesoji, Lindstedt, Paulina A., Adekanmbi, V, Adetokunboh, OO, Adhikari, TB, Afarideh, M, Agudelo-Botero, M, Ahmadi, M, Ahmadi, K, Ahmed, MB, Ahmed, AE, Akalu, TY, Baumann, Mathew M., Akanda, AS, Alahdab, F, Al-Aly, Z, Alam, S, Alam, N, Alamene, GM, Alanzi, TM, Albright, J, Albujeer, A, Alcalde-Rabanal, JE, Johnson, Kimberly B., Alebel, A, Alemu, ZA, Ali, M, Alijanzadeh, M, Alipour, V, Aljunid, SM, Almasi, A, Almasi-Hashiani, A, Al-Mekhlafi, HM, Altirkawi, KA, Blacker, Brigette F., Alvis-Guzman, N, Alvis-Zakzuk, NJ, Amini, S, Amit, AML, Amul, GGH, Andrei, CL, Anjomshoa, M, Ansariadi, A, Antonio, CAT, Antony, B, Abbastabar, Hedayat, Antriyandarti, E, Arabloo, J, Aref, HMA, Aremu, O, Armoon, B, Arora, A, Aryal, KK, Arzani, A, Asadi-Aliabadi, M, Asmelash, D, Abd-Allah, Foad, Atalay, HT, Athari, SM, Athari, SS, Atre, SR, Ausloos, M, Awasthi, S, Awoke, N, Ayala Quintanilla, BP, Ayano, G, Ayanore, MA, Abdelalim, Ahmed, Aynalem, YA, Azari, S, Azman, AS, Babaee, E, Badawi, A, Bagherzadeh, M, Bakkannavar, SM, Balakrishnan, S, Banach, M, Banoub, JAM, Abdollahpour, Ibrahim, Barac, A, Barboza, MA, Bärnighausen, TW, Basu, S, Bay, VD, Bayati, M, Bedi, N, Beheshti, M, Behzadifar, M, Behzadifar, M. The Lancet Publishing Group; 2020. Mapping geographical inequalities in access to drinking water and sanitation facilities in low-income and middle-income countries, 2000-17.