Asian J Androl. 2020 Nov-Dec; 22(6): 636–641.
Published online 2020 Jan 10. doi: 10.4103/aja.aja_135_19
Figure 1: Bland-Altman plots of serum sexual hormones and MAPR at the tip of the penis. (a) Relationship between TT and MAPR. There was no significant correlation between TT and MAPR. (b) Relationship between CFT and MAPR. There was no significant correlation between CFT and MAPR. (c) E2 was negatively correlated with MAPR. (d) E2/TT was negatively correlated with MAPR. MAPR: maximal average penile rigidity; TT: total testosterone; CFT: calculated free testosterone; E2: estradiol; E2/TT: estradiol to total testosterone ratio.
@enackers asks…what about fertility? What indeed…