1981 | Author: Neil W M Orr MD | Annals of the Royal College of Surgeons of England (I98I) vol. 63 | source “Is a mask necessary in the operating theatre?” Conclusion: “It would appear that minimum contamination can best be achieved by not wearing a mask at all” and that wearing a mask during … Continue reading 1981: Surgeon’s medical mask study concludes, “minimum contamination can best be achieved by not wearing a mask at all”