TY - GEN AU - VanderLaan,Doug P AU - Petterson,Lanna J AU - Vasey,Paul L TI - Elevated Kin-Directed Altruism Emerges in Childhood and Is Linked to Feminine Gender Expression in Samoan Fa'afafine: A Retrospective Study SN - 1573-2800 PY - 2017///0918 KW - Adult KW - Altruism KW - Female KW - Gender Identity KW - Homosexuality, Male KW - ethnology KW - Humans KW - Male KW - Reproduction KW - Retrospective Studies KW - Samoa KW - Sexual Behavior KW - Siblings N1 - Publication Type: Journal Article UR - https://doi.org/10.1007/s10508-016-0884-2 ER -