LUO, Jake; WU, Min; CHEN, Weiheng. Geographical Distribution and Trends of Clinical Trial Recruitment Sites in Developing and Developed Countries. Journal of Health Informatics in Developing Countries, [S. l.], v. 11, n. 1, 2017. Disponível em: https://jhidc.org/index.php/jhidc/article/view/157. Acesso em: 22 aug. 2026.