1. ALLEN, A. W. (1946), Surg. Gynec. & Obstet., 82, 490.
2. BABCOCK, W. W. (1932), Ibid., 55, 627.
3. in ' The Treatment of Cancer and Allied;BABCOCK, W.W.,1940
4. BABCOCK, W. W. (1947), Surg. Gynec. & Obstet., 85, i.
5. BACON, H. (1945), Ibid., 8x, 113. D'ALLAINES (1950), Proc. Roy. Soc. Med., 43, 697.