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doi: 10.1111/dom.12291 71 ChangSYKimDBRyuGRKoSHJeongIKAhnYBet al
Based on our experience with actigraphy, the standard deviation in activity in normal children is 20 in index activity and 2 arousals per night
Tobacco control and childhood vaccination deliver exceptional returns, but most gains are already captured in high-income countries
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