Is there a fallopian tube sphincter that causes tubal spasm? An anatomic pilot study in transmen

Affiliations

• ¹ Department of Gynecological Endocrinology and Reproductive Medicine, Medical University of Vienna, Vienna, Austria.
• ² Department of Gynecological Endocrinology and Reproductive Medicine, Medical University of Vienna, Vienna, Austria. Electronic address: johannes.ott@meduniwien.ac.at.
• ³ Parryscope and Positive Steps Fertility, Madison, Mississippi; Department of Obstetrics and Gynaecology, Louisiana State University Health, Shreveport, Louisiana.
• ⁴ Division of Anatomy, Medical University of Vienna, Vienna, Austria.
• ⁵ Department of Gynecological Endocrinology and Reproductive Medicine, Medical University of Vienna, Vienna, Austria; Division of Reproductive Medicine and In Vitro Fertilization, Massachusetts General Fertility Center, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.
• ⁶ Division of Reproductive Medicine and In Vitro Fertilization, Massachusetts General Fertility Center, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.