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https://www.8zoo.net/video/forcing-his-knot-past-her-sphincter-muscle-she-cried/ Forcing His Knot Past Her Sphincter Muscle She Cried sphincter muscle forcing knot past cried https://www.semanticscholar.org/topic/Structure-of-sphincter-ani-muscle/160444 Structure of sphincter ani muscle | Semantic Scholar sphincter ani muscle structure semantic scholar https://pmc.ncbi.nlm.nih.gov/articles/PMC7291744/ Generation of myogenic progenitor cell-derived smooth muscle cells for sphincter regeneration - PMC Degeneration of smooth muscles in sphincters can cause debilitating diseases such as fecal incontinence. Skeletal muscle-derived cells have been effectively... smooth muscle cells https://www.epo.org/de/boards-of-appeal/decisions/t161031eu1 T 1031/16 (Myoblasts for treating the urinary sphincter muscle / UNIVERSITY OF PITTSBURGH) vom...