[No authors listed]
Br Med J. 1973 Oct 27;4(5886):239.
PMID: 4586039 Free PMC Article
Free PMC Article

Organ CH.
J Natl Med Assoc. 1978 Sep;70(9):683-4.
PMID: 359824

Brewer LA.
Ann Thorac Surg. 1978 Jan;25(1):1-2. doi: 10.1016/s0003-4975(10)63474-1.
PMID: 339861

Kravetz RE.
Am J Gastroenterol. 2006 May;101(5):924-5. doi: 10.1111/j.1572-0241.2006.00670.x.
PMID: 16696779

Kampmeier RH.
Trans Assoc Am Physicians. 1975;88:16-7.
PMID: 772927

Ameerally PJ, Hollows P.
Br J Oral Maxillofac Surg. 2005 Apr;43(2):143.
PMID: 15846871

Schmitt W.
Zentralbl Chir. 1982;107(13):798-808.
PMID: 6753414