3[4]Jonathan SB.Novak's Gynecology.13th ed.Lippincott Williams & Wilkins.2002.510-542.
4[5]Ghazeeri GS,Phillips OP,Emerson DS,et al.Live birth after treatment of a heterotopic corneal pregnancy with fetal intrathoracic KCL.A case report.J Repord Med,2002,47:1038-1040.
5[6]Oyawoye S,Chander B,Pavlovic B,et al.Heterotopic pregnancy:successful management with aspiration of corneal/interstitial gestational sac and instillation of small dose of methotrerate.Fetal Diagn Ther,2003,18:1-4.