Keywords: Pap smear.jpg A female Caucasian scientist examining pap smears under the microscope Topics/Categories People -- Adult People -- Health Professional Science and Technology -- Laboratory Techniques/Equipment Type Color Photo Source National Cancer Institute Bill Branson Photographer 2366 1988-10 Reuse Restrictions None - This image is in the public domain and can be freely reused Please credit the source and/or author listed above Bill Branson Photographer PD-USGov-HHS-NIH Media from National Cancer Institute Visuals Online Images uploaded by Fæ People with microscopes |