1930
AD
The use of x-rays for diagnostic examination of the breast was introduced in by Stafford Warren. His technique involved the patient lying on her side with her arm raised and having the picture taken from the side.1
- 1Warren, S.L. "A Roentgenologic Study of the Breast." The American Journal of Roentgenology and Radium Therapy. 24 (1930): 113-124.