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MacGregor AB, Falk RE, Landi S, Ambus U, Samuel ES, Langer B.MacGregor AB, et al. Among authors: falk re.Can J Surg. 1977 Jan;20(1):25-30.Can J Surg. 1977.PMID: 832200
Falk RE, Makowka L, Ambus U, Falk JA, Bugala R, Landi S.Falk RE, et al. Among authors: falk ja.Can Med Assoc J. 1983 Jun 15;128(12):1385-8, 1422.Can Med Assoc J. 1983.PMID: 6850464Free PMC article.Clinical Trial.
Ambus U, Falk RE, Landi S, Bugala R, Langer B.Ambus U, et al. Among authors: falk re.Dev Biol Stand. 1977 Apr 13-15;38:541-5.Dev Biol Stand. 1977.PMID: 344107Clinical Trial.
Falk RE, MacGregor AB, Ambus U, Landi S, Miller AB, Samuel ES, Langer B.Falk RE, et al.Dis Colon Rectum. 1977 Apr;20(3):215-22. doi: 10.1007/BF02587182.Dis Colon Rectum. 1977.PMID: 849691Clinical Trial.
MacGregor AB, Falk RE, Landi S, Ambus U, Langer B.MacGregor AB, et al. Among authors: falk re.Surg Gynecol Obstet. 1975 Nov;141(5):747-54.Surg Gynecol Obstet. 1975.PMID: 1105837
Falk RE, Makowka L, Nossal NA, Rotstein LE, Falk JA.Falk RE, et al. Among authors: falk ja.Surgery. 1980 Jul;88(1):126-36.Surgery. 1980.PMID: 6992317Clinical Trial.