1. Methotrexate in dermatology;Bangert;Dermatol Ther,2007
2. 2NHS National Patient Safety Agency. Towards the Safer Use of Oral Methotrexate, 2004. Available at: http://www.npsa.nhs.uk (last accessed 12 January 2009).
3. 3NHS National Patient Safety Agency. Patient Safety Alert 13 - Improving Compliance with Oral Methotrexate Guidelines, 2006. Available at: http://www.npsa.nhs.uk (last accessed 12 January 2009).
4. 4British National Formulary 55. Section 13.5.3. Methotrexate. London: BMJ Group and RPS Publishing, 2008; 617.