Humans
Sorbye, L. W. 1984. [Ethics of the health system]. Sykepleien. 71 (8) 16-7, 28.
Hamilton, M. 1967. Development of a rating scale for primary depressive illness. Br J Soc Clin Psychol. 6 (4) 278-96.
Lawton, M. P., Brody, E. M. 1969. Assessment of older people: self-maintaining and instrumental activities of daily living. Gerontologist. 9 (3) 179-86.