@article{art4674,
  title = {Prophylactic Single-Dose Systemic Methotrexate Therapy for High-Risk Group in Persistent Ectopic Pregnancy After Laparoscopic Conservative Surgery of Tubal Pregnancy},
  doi = {10.18535/ijsshi/v10i12.02},
  url = {https://valleyinternational.net/index.php/ijecs/article/view/4674}
}