INSL3 and cartilage-hair hypoplasia: In this study, we evaluated the performance of the testicular markers INSL3 and INB in two cohorts; first in boys with delayed puberty due to either CHH or CDGP, and second in adult men with either CHH and eugonadal controls to determine the role of INSL3 and INB as biomarkers in CHH and delayed puberty.