Wagner JD, Anthony MS, Cline JM. Soy phytoestrogens: research on benefits and risks. Clin Obstet Gynecol. 2001 Dec;44(4):843-52.
Whalley D, McKenna SP, de Jong Z, van der Heijde D. Quality of life in rheumatoid arthritis. Br J Rheumatol. 1997;36(8):884-8.
de Jong Z, van der Heijde D, McKenna SP, Whalley D. The reliability and construct validity of the RAQoL: a rheumatoid arthritis-specific quality of life instrument. Br J Rheumatol. 1997;36(8):878-83.