title: NIH policy: status quo is also costly.
authors.affiliation: Organization for the Study of Sex Differences, Washington DC, USA.
authors.forename: Louise D
authors.initials: LD
authors.lastname: McCullough
authors.affiliation: Organization for the Study of Sex Differences, Washington DC, USA.
authors.forename: Margaret M
authors.initials: MM
authors.lastname: McCarthy
authors.affiliation: Organization for the Study of Sex Differences, Washington DC, USA.
authors.forename: Geert J
authors.initials: GJ
authors.lastname: de Vries
mesh_terms: D032761:Animal Experimentation; D000818:Animals; D035843:Biomedical Research / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D009316:National Institutes of Health (U.S.); D012107:Research Design; D012727:Sex Characteristics; D012744:Sex Ratio