5Horne AW,Duncan WC,Critchley HO.The need for serum biomarker development for diagnosing and excluding tubal ectopic pregnancy[J].Acta Obstet Gynecol Scand,2010,89(3):299.
6Kirkegaard I,Henriksen TB,Trring N,et al.PAPP-A and free β-hCG measured prior to 10 weeks is associated with preterm delivery and small-for-gestational-age infants[J].Prenat Diagn,2011,31(2):171.
7Kuo HT,Yeh JZ,Jiang CM,et al.Magnetic particle-linked anti hCG β antibody for immunoassay of human chorionic gonadotropin (hCG),potential application to early pregnancy diagnosis[J].J Immunol Methods.2012,381(1-2):32.
9Stulberg DB,Cain LR,Dahlquist I,et al.Ectopic pregnancyrates in the Medicaid population[J].Am J Obstet Gynecol,2013,208:274.el-274.el.
10Varma R,Vindla S,Mascarenhas L.Fertility following radical,conservative-surgical or medical treatment for tubal pregnancy:apopulation-based study[J].BJOG,2001,108:130-131.
