title: Fibromyalgia and resistance to warfarin therapy in a patient with systemic lupus erythematosis and antiphospholipid syndrome.
authors.affiliation: 1S.S'. is a medical student at the University of Pennsylvania School of Medicine. Rheumatology Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania (R.S., J.G., P.C.).
authors.forename: S
authors.initials: S
authors.lastname: Schwartz
authors.forename: R
authors.initials: R
authors.lastname: Siegel
authors.forename: J
authors.initials: J
authors.lastname: Getsy
authors.forename: P
authors.initials: P
authors.lastname: Callegari