1. ALLEN, E. (1935), Endocrinology, 19, 255.
2. ALTMANN, M., KNOWLES, E., and BULL, f. (1941), Psychosom. Med., 3, 199.
3. BENEDEK, T., and RUBINSTEIN, B. (1939), Ibid.. April and October.
4. BERTLING, M. (1948), Amer. J. Obst. Gyn., 56, 733.
5. BLAIKLEY, J. (1949), Lancet, 2, 69I.