TY - GEN AU - Cohen,D TI - Research problems and concepts in the study of aging: assessment and behavior modification SN - 0016-9013 PY - 1967///1119 KW - Aged KW - Aging KW - Behavior KW - Behavior Therapy KW - Conditioning, Psychological KW - Geriatrics KW - Humans KW - Learning KW - Middle Aged KW - Personality KW - Personality Assessment KW - Psychotherapy KW - Research N1 - Publication Type: Journal Article; Review UR - https://doi.org/10.1093/geront/7.2_part_2.13 ER -