Danysh HE, Gilman RH, Wells JC, Pan WK, Zaitchik B, Gonzalvez G, Alvarez M, Checkley W. El Niño adversely affected childhood stature and lean mass in northern Peru. Climate Change Responses. 2014;1(7). doi: 10.1186/s40665-014-0007-z
Candrilli SD, Davis KL, Iyer S. Impact of constipation on opioid use patterns, health care resource utilization, and costs in cancer patients on opioid therapy. J Pain Palliat Care Pharmacother. 2009 Sep 1;23(3):231-41.