[On the value of the urinary folic acid excretion test for diagnosis of malignant disease].
D001826:Body Fluids; D005492:Folic Acid; D006801:Humans; D008175:Lung Neoplasms; D009369:Neoplasms
D005492:Folic Acid
FOLIC ACID; LUNG NEOPLASMS; NEOPLASMS