Rao 2016 Rome IV levator ani syndrome. rome_iv_levator_ani is true iff chronic or recurrent rectal pain or aching, episodes lasting 30 minutes or longer, tenderness during puborectalis traction (caller assigns; magent does not perform traction), other causes of rectal pain excluded, last-3-months criteria, and 6-month onset. Not a diagnosis, not proctalgia fugax, not unspecified functional anorectal pain (F2b).

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