Kellogg W H, Macmillan G
Am J Public Health (N Y). 1920 Jan;10(1):34-42. doi: 10.2105/ajph.10.1.34.
Masks have not been proved efficient enough to warrant compulsory application for the checking of epidemics, according to Dr. Kellogg, who has conducted a painstaking investigation with gauzes. This investigation is scientific in character, omitting no one of the necessary factors. It ought to settle the much argued question of masks for the public.
凯洛格博士称，口罩尚未被证明有足够的效果来保证强制使用以控制疫情，他对纱布口罩进行了详尽的调查。这项调查具有科学性，没有遗漏任何必要因素。它应该能解决公众对口罩争议颇多的问题。
