N. Caswell. 2007. Endurance running and digit ratio (2D:4D): Implica- tions for fetal testosterone effects on running speed and vascular health. Am. J. Hum. Biol. 19:416-421. Trivets. R.. J. T. Manning. R. Thornhill et at. 1999. Jamaican Symmetry Project: Long-term study of fluctuating asymmetry in ru

Caswell, N, 2007. Endurance running and digit ratio (2D:4D): implications for fetal testosterone effects on running speed and vascular health. Am. J. Hum. Biol. 19: 416-21. Trivers R, Manning JT, Thornhill R, Singh D, and McGuire M, 1999. Jamaican symmetry project: Long-term study of fluctuating asym

N. Caswell. 2007. Endurance miming and digit ratio (2D:4D): Implica- tions for fetal testosterone effects on running speed and vascular health. Ant. J. Hum. Bid. 19:416-421. Triven. R...I. T. Manning. R. Thornhill et al. 1999. Jamaican Symmetry Projeti: Long-term study of fluctuating asymmetry in rura