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APA Citation
Kurt-Mangold, M., Van Voorhis, B. J., & Krasowski, M. D. (2015). persistent Human Chorionic Gonadotropin After Methotrexate Treatment and an Emergency Surgical Procedure for Ectopic Pregnancy. Laboratory medicine, 46(3), 254–258. http://access.bl.uk/ark:/81055/vdc_100097082420.0x000055