1955 montage doctor and nurses wearing surgical masks and scrubs during surgery/ usa - 手術用口罩 個影片檔及 b 捲影像01:16
1955 montage cu boy on operating table/ surgeon and doctors standing over patient/ usa - 手術用口罩 個影片檔及 b 捲影像00:34
ws two employees exiting door and enter another across hallway, wuxi, jiangsu, china - 手術用口罩 個影片檔及 b 捲影像00:24
ms selective focus vendors selling food to customers in market, beijing, china - 手術用口罩 個影片檔及 b 捲影像00:57
ds ms td man wearing lab coat and flu mask standing outside building, squamish, british columbia, canada - 手術用口罩 個影片檔及 b 捲影像00:12
ds ms man wearing lab coat and flu mask standing outside building, squamish, british columbia, canada - 手術用口罩 個影片檔及 b 捲影像00:09
ds ms la man wearing lab coat and flu mask standing outside building, squamish, british columbia, canada - 手術用口罩 個影片檔及 b 捲影像00:09
ds ms la man wearing lab coat and flu mask standing outside building, squamish, british columbia, canada - 手術用口罩 個影片檔及 b 捲影像00:08
tuberculosis epidemic is overwhelming health clinics across swaziland. it's been fueled by the high rate of hiv amongst the population. but the... - 手術用口罩 個影片檔及 b 捲影像02:18
tuberculosis epidemic is overwhelming health clinics across swaziland. it's been fueled by the high rate of hiv amongst the population. but the... - 手術用口罩 個影片檔及 b 捲影像03:24
medical staff in india check babies and children for health issues at outdoor clinic - 手術用口罩 個影片檔及 b 捲影像00:08
high angle down of woman nurse in hospital office wearing scrubs and surgical mask. - 手術用口罩 個影片檔及 b 捲影像00:18
people gathered around cauldron of burning incense wafting smoke onto themselves at asakusa kannon temple / tokyo - 手術用口罩 個影片檔及 b 捲影像00:09