title: Difficult choices we must make when studying complex patients.
authors.affiliation: Columbia University College of Physicians and Surgeons and New York State Psychiatric Institute, New York, NY.
authors.forename: Patrick J
authors.initials: PJ
authors.lastname: Brown
authors.forename: Bret R
authors.initials: BR
authors.lastname: Rutherford
authors.forename: Steven P
authors.initials: SP
authors.lastname: Roose
mesh_terms: D000818:Animals; D003704:Dementia / Q000523:psychology* / Q000628:therapy*; D003863:Depression / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D009735:Nursing Homes; D057805:Pets / Q000523:psychology*; D011595:Psychomotor Agitation / Q000628:therapy*