Name Info Provider Link
Full text from the Univ. of Michigan Library free resource MLibrary (Deep Blue) http://hdl.handle.net/2027.42/42058
Colonic Diseases free resource MedlinePlus Health Information https://medlineplus.gov/colonicdiseases.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=12612819.ui
subscription/membership/fee required Springer https://dx.doi.org/10.1007/s00247-002-0848-7