After a 2-day training course at the Venereal Disease Research Laboratory, 28 nontechnical venereal disease investigators performed the rapid plasma reagin card test on more than 3,900 persons. The ...
A rapid plasma reagin (RPR) test is a blood test used to screen you for syphilis. It works by detecting the nonspecific antibodies that your body produces while fighting the infection. Syphilis is a ...
Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage ...