Know For Sure
A 1941 film encouraging people to seek treatment if they had, or might have had, syphilis.
- ประเภท: หนังชีวิต
- สตูดิโอ: Research Council of Academy of Motion Picture Arts and Sciences, United States Public Health Service
- คำสำคัญ: syphilis
- นักแสดง: Ward Bond, Joseph Crehan, Samuel S. Hinds, Tim Holt, Edwin Maxwell, Etta McDaniel
