7American Society of Hospital Pharmacists. ASHP statement on the use of medications for unlabeled uses. Am Hospital Pharm, 1992, 49(8): 2006-2008.
8Herring C, McManus A, Weeks A. Off-label prescribing during pregnancy in the UK: an analysis of 18,000 prescriptions in Liver- pool Women's Hospital. The International ournal Of Pharmacy Practice, 2010, 18(4): 226-229.
9Conroy S, Choonara I, Impicciatore P, et al. Survey of unlicensed and off label drug use in paediatric wards in European countries. European Network for Drug Investigation in Children. BM, 2000, 320(7227): 79-82.
10Hames A. Unlicensed and off-label drug use in elderly people. Age And Ageing, 2001, 30(6): 530-531.