Natural light exposure (hours/4-week cycle) of groups of workers according to light exposure.
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a Alternating morning/afternoon shiftsb Alternating morning/afternoon/night shiftsc Starting time before 06:00 hd Starting time after 06:00 he Weighted averages according to the number of work days and number of days-off* Difference mean between work days and days-off within group, PNatural light exposure (hours/4-week cycle) of groups of workers according to light exposure.
创建时间：
2015-12-03
