title: Tropical trials and tribulations.
authors.affiliation: London School of Hygiene and Tropical Medicine, UK.
authors.forename: A J
authors.initials: AJ
authors.lastname: Hall
authors.forename: P
authors.initials: P
authors.lastname: Aaby
mesh_terms: D000349:Africa; D003906:Developing Countries; D006291:Health Policy; D006801:Humans; D007114:Immunization / Q000379:methods; D016032:Randomized Controlled Trials as Topic / Q000379:methods; D012107:Research Design; D014330:Tropical Medicine; D014612:Vaccines / Q000008:administration & dosage
chemical_list: D014612:Vaccines