In addition to achieving several medical firsts, Dr. May Edward Chinn was instrumental in the development of the PAP smear in the early 1930s.
Source: How Is It Possible We Never Learned About This Woman? Meet Dr. May Edward Chinn
In addition to achieving several medical firsts, Dr. May Edward Chinn was instrumental in the development of the PAP smear in the early 1930s.
Source: How Is It Possible We Never Learned About This Woman? Meet Dr. May Edward Chinn