Face mask use in the city of Chennai, India: Results from three serial cross-sectional surveys, 2021

Face mask use in the city of Chennai, India: Results from three serial cross-sectional surveys, 2021. We captured the compliance to face mask usage in outdoors, indoors, and in the malls of Chennai. Three datasets are attached here.

印度金奈市的口罩佩戴情况：2021年三项系列横断面调查结果。本研究采集了金奈市户外、室内及商场场景下的口罩佩戴依从性数据，本次共附带三份数据集。