We used to live in a world where people got sick from exposure to feces and lives were saved with antibiotics. Now we live in a world where people are dying from antibiotics and their lives are being saved by feces.
--a colleague

(Duh.)
http://www.nature.com/news/gut-microbial-enterotypes-become-less-clear-cut-1.10276

Lots of great quotes from research articles (complete with pubmed links) here:
http://heracommunityclinic.wordpress.com/2012/01/20/just-quotes-about-probiotics/

( from Miller endocrinology notes on the posterior pituitary )

( drugs to stay on for the rest of your life )

( notes )

( notes from Marz lecture )

IBD includes Crohn's, UC, and Celiac disease
( notes on Crohn's disease & Ulcerative Colitis )

( notes mostly from gastroenterology lecture by SSL )

( notes from Dr Thom lecture )