“…Some factors related to the patient and the disease itself may affect the therapeutic outcome, including the size of the gestational mass, presence or absence of embryonic cardiac activity, pretreatment serum level of b-hCG or other biomarkers, and even socioeconomic status (4,5,12,13). Although systemic MTX treatment is effective, many potential side effects, including bone marrow depression, stomatitis, anorexia, nausea, vomiting, and diarrhea, have been reported, with an incidence up to 15% (14).…”