1. Guidelines for monitoring drug therapy in rheumatoid arthritis;American College of Rheumatology Ad Hoc Committee on Clinical Guidelines;Arthritis Rheum,1996
2. The immunology of successful pregnancy;Veenstra van Nieuwenhoven;Hum Reprod Update,2003
3. Inducing tolerance to pregnancy;Williams;N Engl J Med,2012
4. Pregnancy in rheumatoid arthritis;Smith;Acta Rheumatol Scand,1960
5. Disease activity of rheumatoid arthritis during pregnancy: results from a nationwide prospective study;De Man;Arthritis Rheum,2008