Know For Sure
- Жыл: 1941
- Өлкө: United States of America
- Жанр: Drama
- Студия: Research Council of Academy of Motion Picture Arts and Sciences, United States Public Health Service
- Ачкыч сөз: syphilis
- Директор: Lewis Milestone
- Кастинг: Ward Bond, Joseph Crehan, Samuel S. Hinds, Tim Holt, Edwin Maxwell, Etta McDaniel