title: Illness behavior--an experimental investigation.
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D003216:Conditioning, Operant; D005108:Extinction, Psychological; D005260:Female; D006306:Health Surveys; D006801:Humans; D007348:Insurance, Health; D008875:Middle Aged; D010817:Physician-Patient Relations; D012057:Reinforcement, Verbal; D012380:Role; D012803:Sick Role; D014861:Washington