1Verma U, Glharkhay N. Conservative management of cervical ectopic pregnancy ~JJ . Fertil Steril, 2009, 91 (3) : 671.
2Leemah LM, Wendland CL. Cervical ectopic pregnancy. Diagnosis with endovaginal ultrasound examination and successful treatment with metho- trexate [J] . Arch Faro Med, 2000, 9 (1) : 72.
3Nawroth F, Foth D, Wilhelm Let al. Conservative treatment of eetopie pregnancy in a cesarean section scar with methotrexate: a case report [ J) . Eur J Obstet Gynecol Reprod Biol, 2001, 99 ( 1 ) : 135.