2Baena LC, Ramirez PE, Linares LM, et al. Epidemiology of bone tu- mors in Mexico City: retrospective clinic pathologic study of 566 patients at a referral institution [J]. Ann Diagn Pathol, 2009, 13 (1): 16-21.
3Abdollahi SF, Bahlouli A, Mostafa PG, et al. Comparison of laparos- copy-assisted hysterectomies with conventional hysteretomies [J]. Saudi Med J, 2009, 30(6): 813-816.