TY - GEN AU - Ahn,Youngmee AU - Garruto,Ralph M TI - Weight variation by sex and nature of risk factors in high-risk infants: an evolutionary perspective SN - 0350-6134 PY - 2008///0205 KW - Biological Evolution KW - Birth Weight KW - Female KW - Fetal Development KW - Gestational Age KW - Growth KW - Humans KW - Infant, Newborn KW - Male KW - Risk Factors KW - Sex Characteristics N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't ER -