[Primary health care in urban zones].
D001938:Brazil; D003105:Colombia; D003153:Community Health Services; D003150:Community Health Workers; D004484:Ecuador; D006166:Guatemala; D006262:Health; D006297:Health Services Accessibility; D006801:Humans; D010568:Peru; D011320:Primary Health Care; D014504:Urban Health
Atención primaria de salud en zonas urbanas.