DNA extracts from peripheral blood specimens were obtained from a population - based case - control study of risk factors for breast cancer in women 21 to 45 years old. (journals.plos.org)
In these types of medical assisting classes students learn how to collect specimens from patients, particularly blood specimens. (mb-guide.org)
All participants completed an in - person structured interview detailing family, environmental, and reproductive histories and provided a peripheral blood specimen. (journals.plos.org)