On the villous adenoma of the rectum actively eliminating potassium.
D000236:Adenoma / Q000378:metabolism* / Q000601:surgery; D005260:Female; D006801:Humans; D008875:Middle Aged; D011188:Potassium / Q000378:metabolism*; D012004:Rectal Neoplasms / Q000378:metabolism* / Q000601:surgery; D012964:Sodium / Q000378:metabolism
D012964:Sodium; D011188:Potassium