%0 Journal Article %U http://www.molvis.org/molvis/v21/621 %> mv-v21-621.pdf %A Guggenheim, Jeremy A. %A St Pourcain, Beate %A McMahon, George %A Timpson, Nicholas J. %A Evans, David M. %A Williams, Cathy %T Assumption-free estimation of the genetic contribution to refractive error across childhood %D 2015 %V 21 %P 621-632 %J Molecular Vision