Describe the positive feedback systems that occur during labor and delivery.
Parents were concerned about their 16-year-old son for the following reasons: he had no deepening of his voice, scanty pubic and axillary hair growth, absence of beard and mustache growth, small penis, poor muscular development, and psychosocial immaturity. Laboratory evaluation indicated the following: Serum testosterone 100 ng/dL Sperm count […]