1. Modern management of ectopic pregnancy;Leach;J Reprod Med,1989
2. Reproductive performance following conservative management of tubal pregnancy;Oelsner;Br J Obstet Gynaecol,1988
3. Limitations of qualitative serum beta-hCG assays in the diagnosis of ectopic pregnancy;Olson;J Reprod Med,1983
4. Ectopic pregnancy with shock and undetectable human chorionic gonadotropin. A case report;Lonky;J Reprod Med,1987
5. Pitfall in the diagnosis of ectopic pregnancy: immunocytochemical evaluation in a patient with false-negative serum hCG levels;Taylor;Obstet Gynecol,1988