title: The roads travelled.
authors.forename: L
authors.initials: L
authors.lastname: Billard
mesh_terms: D016915:AIDS Vaccines; D000163:Acquired Immunodeficiency Syndrome / Q000175:diagnosis / Q000453:epidemiology / Q000517:prevention & control; D001699:Biometry; D002648:Child; D006801:Humans; D010163:Paleontology; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control; D011054:Poliovirus Vaccine, Inactivated
chemical_list: D016915:AIDS Vaccines; D011054:Poliovirus Vaccine, Inactivated