to demonstrate unbalanced distribution of subunits of human chorionic gonadotropin ( hcg ) in the lung and lung tumors and to clarify its significance in differentiation and carcinogenesis of the lung , immunohistochemistry was performed on human fetus , infant , and adult lungs , and endocrine and nonendocrine tumors of the lung .
C0024109
lungs
C0024121
tumors of the lung