title: Questions validity of equine vaccine field studies.
authors.forename: M D
authors.initials: MD
authors.lastname: Piontkowski
mesh_terms: D000818:Animals; D006734:Horse Diseases / Q000517:prevention & control*; D006736:Horses; D007252:Influenza Vaccines / Q000276:immunology / Q000592:standards*; D009976:Orthomyxoviridae Infections / Q000517:prevention & control / Q000662:veterinary*; D015203:Reproducibility of Results; D014611:Vaccination / Q000662:veterinary*
chemical_list: D007252:Influenza Vaccines