Can digit ratio (2D:4D) studies be helpful in explaining the aetiology of idiopathic gynecomastia?

Aetiology of idiopathic form of gynecomastia is unknown and it has not been established if it is related to factors present at the prenatal period or if it is caused by yet unidentified environmental conditions.
Source: Early Human Development - Category: Perinatology & Neonatology Authors: Source Type: research