binding of [ 3h ] testosterone appeared in the preputial mesenchymal cells , mesenchymal cells around the urethra and in the urethral epithelial cells at 15.5 days of gestation , and in the precursor cells of the proximal and distal segments of the os penis and corpus cavernosum penis at 16.5-17.5 days of gestation in both the male and female fetuses .
C0039601
testosterone
C0032961
gestation