TY - RPRT TI - Personality patterns in insomnia. Theoretical implications. AU - A Kales AU - A B Caldwell AU - T A Preston AU - S Healey AU - J D Kales PY - 1976 DO - 10.1001/archpsyc.1976.01770090118013 UR - https://pubmed.ncbi.nlm.nih.gov/962495/ ID - 962495 ER -