DP - MPI Library TY - JOUR AU - Helle, Samuli AU - Lummaa, Virpi AU - Jokela, Jukka T1 - On the number of sons born and shorter lifespan in historical Sami mothers UR - https://www.jstor.org/stable/27862397 T2 - Proceedings of the Royal Society of London SP - Vol. 277, No. 1696 (2010), p. 2909-2911 CY - London : The Royal Society PY - 2010 N1 - Copyright: Copyright © 2010 The Royal Society ER -