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
Knox D, Gibson L, Zusman ME, Gallmeier C. Why college students end relationships. Coll Stud J. 1997 Jan 1;31(4):449-52.