The urinary excretion of the formaldehydogenic steroids in patients with neoplasia of the respiratory or digestive system. 2. Neoplasia of the digestive system.
D004064:Digestive System; D004067:Digestive System Neoplasms; D005557:Formaldehyde / Q000378:metabolism*; D041981:Gastrointestinal Tract; D009369:Neoplasms; D013256:Steroids / Q000652:urine*
D013256:Steroids; D005557:Formaldehyde
FORMALDEHYDE/metabolism; GASTROINTESTINAL SYSTEM/neoplasms; STEROIDS/in urine