They looked at the DNA methylation signature from blood of those women with and without BRCA1 mutations. (sciencedaily.com)
He thought that the male semen acted upon the menstrual blood of the woman, forming this blood into the body of the fetus. (faith.org.uk)
To test their hypothesis, the investigators looked for the presence of fetal cells inthe blood of women with and without breast cancer. (discovermagazine.com)