A multilevel examination of factors of the school environment and time spent in moderate to vigorous physical activity among a sample of secondary school students in grades 9–12 in Ontario, Canada
2012 ◽
Vol 57
(4)
◽
pp. 699-709
◽
2020 ◽
2019 ◽
2021 ◽
Vol 25
(3)
◽
pp. 178-187
2021 ◽
Vol 13
(3)
◽
pp. 396-404
Keyword(s):