Cite
MLA Citation
Qian Gao et al.. “Changes in Time Spent Outdoors During the Daytime in Rural Populations in Four Geographically Distinct Regions in China: A Retrospective Study.” Photochemistry and photobiology, vol. 93, 2017, pp. 619–625. http://access.bl.uk/ark:/81055/vdc_100044376991.0x000054