Fortuny J, Silverman D, Malats N, Tardon A, Garcia-Closas R, Serra C, Carrato A, Rothman N, Dosemeci M, Kogevinas M. Use of analgesics and aspirin in a Spanish multicenter study. Gac Sanit. 2005 Jul;19(4):316-20. doi: 10.1157/13078041
Richter A, Pladevall M, Manjunath R, Lafata JE, Xi H, Simpkins J, Brar I, Markowitz N, Iloeje U, Irish W. Patient characteristics and costs associated with dyslipidaemia and related conditions in HIV-infected patients: a retrospective cohort study. HIV Med. 2005 Mar 1;6(2):79-90.