Gareth Richards

This paper attempts to replicate Lutchmaya et al. (2004) findings on the relationship between amniotic testosterone/estradiol ratios and digit ratios but finds no consistent evidence for the original effects.

This study examines whether 2D:4D differs between youth with congenital adrenal hyperplasia and controls, finding no significant difference.

This paper conducts a meta-analysis of 2D:4D ratios in individuals with congenital adrenal hyperplasia compared to controls, finding reduced ratios in males but not females and a smaller overall effect size than a prior study.