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. 2011 Mar 4;119(7):958–963. doi: 10.1289/ehp.1103421

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Landmarks for two measurements of AGD: AGD_AP, from the cephalad insertion of the penis to the center of the anus (point 1 to point 3); and AGD_AS, from the posterior base (first fold) of the scrotum to the center of the anus (point 2 to point 3). Adapted with permission from Sathyanarayana et al. (2010).