APS advises NIH on sex as a biologicaI variable.
D000818:Animals; D001695:Biology / Q000592:standards*; D005260:Female; D006801:Humans; D008297:Male; D009316:National Institutes of Health (U.S.) / Q000592:standards*; D010827:Physiology / Q000592:standards*; D012727:Sex Characteristics; D057170:Translational Research, Biomedical / Q000592:standards*; D014481:United States