Glycerin suppository. Accessed May 21, 2015 from: http://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=037b6805-6722-4ab7-8862-409407a5fea5
Glycerin. DRUGDEX System. 2015 Truven Health Analytics, Inc. Accessed May 27, 2015 from: http://thomsonhc.com