Furthermore, we do not have information about characteristics of the women who were eligible for the study but refused to participate. (bmcpregnancychildbirth.biomedcentral.com)
If you believe your pet is eligible for a study, we recommend you contact your primary care veterinarian and request a referral. (vet.purdue.edu)
Additionally, only one child per mother was eligible for the study. (childwelfare.gov)