Gloyd S, Suarez Torres J, Mercer MA. Immunization campaigns and political agendas: retrospective from Ecuador and El Salvador. Int J Health Serv. 2003;33(1):113-28.
Gloyd S, Suarez Torres J, Mercer MA. Immunization campaigns and political agendas: retrospective from Ecuador and El Salvador. Int J Health Serv. 2003;33(1):113-28.