@article{Hoekstra2008,
author = {Hoekstra, C. and Zhao, Z.Z. and Lambalk, C.B. and Willemsen, G. and Martin, N.G. and Boomsma, D.I. and Montgomery, G.W.},
title= {Dizygotic twinning},
year = {2008},
doi = {10.1093/humupd/dmm036},
volume = {14},
number = {1},
pages = {37--47},
}