Comparison of Users of the Closed Hospital do Desterro with Former Users of Hospital de São José in the Access to the Outpatient Department of Internal Medicine Consultation - Part I: Purpose, Population, Methods and Main Findings About Potential of Access [Comparaão dos Utentes do Antigo Hospital do Desterro Com Os Utentes do Hospital de S. José No Acesso À Consulta de Medicina Interna - Parte I: Objectivos, Populaão, Métodos e Resultados Sobre Potencial de Acesso]