1. Deighton C, Luqmani R (2009) The NICE and BSR guidelines on the management of rheumatoid arthritis (online). Autumn No. 4. Available from http://www.arc.org.uk/arthinfo/medpubs/6544/6544.asp . Accessed 12 Jan 2010
2. Barrett JH, Brennan P, Fiddler M, Silman AJ (1999) Does rheumatoid arthritis remit during pregnancy and relapse postpartum? Results from a nationwide study in the United Kingdom performed prospectively from late pregnancy. Arthritis Rheum 42:1219–1227. Available from http://www3.interscience.wiley.com/cgi-bin/fulltext/79503251/PDFSTART . Accessed 12 Jan 2010
3. Silman AJ, Kay A, Brennan P (1992) Timing of pregnancy in relation to the onset of rheumatoid arthritis (abstract). Arthritis Rheum 35:152–155. Available from http://www.ncbi.nlm.nih.gov/pubmed/1734904?dopt=Abstract . Accessed 12 Jan 2010
4. Torfs CP, Katz EA, Bateson TF, Lam PK, Curry CJ (1996) Maternal medications and environmental exposures as risk factors for gastroschisis (abstract). Teratology 54:84–92. Available from http://www.ncbi.nlm.nih.gov/pubmed/8948544?itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum&ordinalpos=3 . Accessed 12 Jan 2010
5. Nielsen GL, Sorensen HT, Larsen H, Pedersen L (2001) Risk of adverse birth outcome and miscarriage in pregnant users of non-steroidal anti-inflammatory drugs: population-based observational study and case-control study. BMJ 322:266–270. Available from http://www.bmj.com/cgi/content/full/322/7281/266?view=long&pmid=11157526 . Accessed 12 Jan 2010