LEFÈVRE, Fernando. Supply and demand of "instant health" by means of medicines: a proposal for research . Revista de Saúde Pública, São Paulo, Brasil, v. 21, n. 1, p. 64–67, 1987. DOI: 10.1590/S0034-89101987000100010. Disponível em: https://www.revistas.usp.br/rsp/article/view/23407.. Acesso em: 15 may. 2024.