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* 《舍利弗阿毘昙论》: 癊胆汗肪髓脑脂～涕唾脓血小便及馀此身内受水润等是名内

(translated) Appears in *Shariputra Abhidharma Treatise*, listing gallbladder, bile, sweat, fat, marrow, brain, grease, and similar bodily fluids such as nasal mucus, saliva, pus, blood, urine, and other internal moist substances; these are categorized as "internal"