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BMC Public Health > 2015 > 15 > 1 > 1-10
Psychology of Sport & Exercise > 2014 > 15 > 3 > 247-254
Respiratory Medicine > 2008 > 102 > 1 > 20-26
BMC Public Health > 2015 > 15 > 1 > 1-10
Psychology of Sport & Exercise > 2014 > 15 > 3 > 247-254
Respiratory Medicine > 2008 > 102 > 1 > 20-26