1. Ectopic pregnancy in Finland 1967-1983: a massive increase;Mäkinen;BMJ,1987
2. Ectopic pregnancies-United States, 1988-1989;Centers for Disease Control;MMWR,1992
3. Economic impact of pelviscopic surgery;Levine;J Reprod Med,1985
4. A comparison of laparoscopy and laparotomy for the treatment of ectopic pregnancy;Brumsted;Obstet Gynecol,1988
5. Management of unruptured ectopic gestation by linear salpingostomy: a prospective, randomised clinical trial of laparoscopy versus laparotomy;Vermesh;Obstet Gynecol,1989