Share doctor solution face mask selection and use problems
Believe in addition to the health promotional video for the Professor to use the masks of the basic process, but now because there are other methods of use of seemingly scientific, but the actual effectiveness and how? Share the film with family doctors answer Daily the selection and use of face masks questions and answers.
Video source from Hong Kong cable TV, because academic use is reproduced to the network
Translated by Yandex.Translate and Global Translator
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