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Diagrammatic Representation of Sexual Maturity Rating (Tanner) Stages I to V of Pubic Hair Development and Penis Maturation in Boys

Adapted from Figures 1 and 2 in Marshall WA, Tanner JM: Variations in the pattern of pubertal changes in boys. Arch Dis Child. 1970;45(239):13-23. doi:10.1136/adc.45.239.13

Diagrammatic Representation of Sexual Maturity Rating (Tanner) Stages I to V of Pubic Hair Development and Penis Maturation in Boys