Readers React: A 1980 trip to Japan gave insight into mask usage
Reader: In 1980 I went to Japan to do some technical work for my employer's customer. While traveling from the airport through Yokohama, I noticed many people wearing white medical…
Reader: In 1980 I went to Japan to do some technical work for my employer's customer. While traveling from the airport through Yokohama, I noticed many people wearing white medical…