AndrénL.FriebergS.: Roentgen diagnosis of the rectum. Gastroenterologv31 (1956), 566.
2.
AndrénL.FriebergS.WelinS.: Roentgen diagnosis of small polyps in the colon and rectum. Acta radiol.43 (1955), 201.
3.
BlumerG.: The rectal shelf: A neglected rectal sign of value in diagnosis of obscure malignant and inflammatory disease within the abdomen. Albany med. Ann.30 (1909), 361.
4.
BolesR. S.HodesPh. J.: Endometriosis of the small and large intestine. Gastroenterology34 (1958), 367.
5.
BuieL. A.JackmanR. J.VickersP. M.: Extrarectal masses caused by tumours of the recto-uterine or recto-vesical space. J. Amer. med. Ass.117 (1941), 167.
6.
CulverG. J.CaldwellM. V.: Endometriosis of the rectosigmoid. J. Canad. Ass. Radiol.2 (1951), 6.
7.
CulverG. J.PereiraR. M.SeibelR.: Radiographic features of rectosigmoid endometriosis. Amer. J. Obstet. Gynec.76 (1958), 1176.
8.
HultbornK. A.MoralesO.RomanusR.: The so-called shelf tumour of the rectum. Acta radiol. (1955) Suppl. No. 124.
9.
JenkinsonE. L.BrownW. H.: Endometriosis; a study of one hundred and seventeen cases with special reference to constricting lesions of the rectum and sigmoid colon. J. Amer. med. Ass.122 (1943), 349.
10.
JosefssonH.: Contribution to the diagnosis of strangulating endometriosis in the sigmoid colon. Acta obstet. gynec. scand.19 (1939), 256.
11.
LiljaB.: Quoted by Josefsson (1959).
12.
SpjutH. J.PerkinsD. E.: Endometriosis of the sigmoid colon and rectum. Amer. J. Roentgenol.82 (1959), 1070.
13.
TagartR. E. B.: Endometriosis of the large intestine. Brit. J. Surg.47 (1959), 27.