Shah KR, Joshi A (March 2006). "Complete genitourinary and colonic duplication: a rare presentation in an adult patient". Journal of Ultrasound in Medicine. 25 (3): 407–11. doi:10.7863/jum.2006.25.3.407. PMID16495506.
Kroes HY, Takahashi M, Zijlstra RJ, Baert JA, Kooi KA, Hofstra RM, van Essen AJ (November 2002). "Two cases of the caudal duplication anomaly including a discordant monozygotic twin". American Journal of Medical Genetics. 112 (4): 390–3. doi:10.1002/ajmg.10594. PMID12376942.
Acer T, Ötgün İ, Sağnak Akıllı M, Gürbüz EE, Güney LH, Hiçsönmez A (May 2013). "A newborn with caudal duplication and duplex imperforate anus". Journal of Pediatric Surgery. 48 (5): E37-43. doi:10.1016/j.jpedsurg.2013.03.068. PMID23701807.
Ramzan M, Ahmed S, Ali S (January 2014). "Caudal duplication syndrome"(PDF). Journal of the College of Physicians and Surgeons--Pakistan. 24 (1): 64–6. PMID24411548.
Shah KR, Joshi A (March 2006). "Complete genitourinary and colonic duplication: a rare presentation in an adult patient". Journal of Ultrasound in Medicine. 25 (3): 407–11. doi:10.7863/jum.2006.25.3.407. PMID16495506.
Kroes HY, Takahashi M, Zijlstra RJ, Baert JA, Kooi KA, Hofstra RM, van Essen AJ (November 2002). "Two cases of the caudal duplication anomaly including a discordant monozygotic twin". American Journal of Medical Genetics. 112 (4): 390–3. doi:10.1002/ajmg.10594. PMID12376942.
Acer T, Ötgün İ, Sağnak Akıllı M, Gürbüz EE, Güney LH, Hiçsönmez A (May 2013). "A newborn with caudal duplication and duplex imperforate anus". Journal of Pediatric Surgery. 48 (5): E37-43. doi:10.1016/j.jpedsurg.2013.03.068. PMID23701807.
Ramzan M, Ahmed S, Ali S (January 2014). "Caudal duplication syndrome"(PDF). Journal of the College of Physicians and Surgeons--Pakistan. 24 (1): 64–6. PMID24411548.