Case study. Is longer always better?
D000818:Animals; D000914:Antibodies, Viral / Q000097:blood; D001717:Birds; D032962:Consent Forms / Q000941:ethics* / Q000592:standards; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage / Q000009:adverse effects; D005585:Influenza in Birds / Q000276:immunology; D007251:Influenza, Human / Q000517:prevention & control; D033281:Nontherapeutic Human Experimentation / Q000941:ethics*; D018962:Phlebotomy / Q000009:adverse effects; D016032:Randomized Controlled Trials as Topic / Q000941:ethics* / Q000379:methods
D000914:Antibodies, Viral; D007252:Influenza Vaccines