@article{Blanchard2001,
author = {Blanchard, R.},
title= {Fraternal Birth Order and the Maternal Immune Hypothesis of Male Homosexuality},
year = {2001},
doi = {10.1006/hbeh.2001.1681},
journal = {Hormones and Behavior},
volume = {40},
number = {2},
pages = {105--114},
}