ANCHER , Jens. Primary Care. Upsala Journal of Medical Sciences, [S. l.], v. 95, n. 3, p. 221–223, 1990. DOI: 10.3109/03009739009178592. Disponível em: https://ujms.net/index.php/ujms/article/view/6773. Acesso em: 13 nov. 2026.