Ectopic human chorionic gonadotropin beta secretion by epithelial tumors and human chorionic gonadotropin

Stephen A Butler1, Ray K Iles

  • 1Williamson Laboratory for Molecular Oncology, Department of Obstetrics and Gynecology, St. Bartholomew's and the Royal London School of Medicine and Dentistry, St. Bartholomew's Hospital, West Smithfield, London EC1A 7BE, United Kingdom.

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