DEL ROSS, T.; RUFFATTI, A.; TONELLO, M.; SALMISTRARO, G.; CALLIGARO, A.; FAVARO, M.; CIPRIAN, M.; TODESCO, S. Primary antiphosholipid syndrome and hyperomocysteinemia: a study of a group of 29 patients. Reumatismo, v. 58, n. 4, p. 283-287, 11.