[Observations on Venezuela].
D000553:Ambulatory Care; D003140:Communicable Disease Control; D006801:Humans; D011051:Poliomyelitis / Q000517:prevention & control; D011054:Poliovirus Vaccine, Inactivated / Q000627:therapeutic use; D011634:Public Health; D014505:Urban Population; D014687:Venezuela; D015004:Yellow Fever / Q000517:prevention & control
D011054:Poliovirus Vaccine, Inactivated
Quelques notes du Vénézuéla