title: "Internal control" and the taking of influenza shots.
mesh_terms: D001294:Attitude to Health; D006801:Humans; D007114:Immunization; D007252:Influenza Vaccines; D009042:Motivation; D010551:Personality; D011581:Psychological Tests; D012054:Reinforcement, Psychology; D012649:Self Concept; D011795:Surveys and Questionnaires
chemical_list: D007252:Influenza Vaccines