scholarly journals A school-based intervention improves physical fitness in Ecuadorian adolescents: a cluster-randomized controlled trial

Author(s):  
Susana Andrade ◽  
Carl Lachat ◽  
Angelica Ochoa-Aviles ◽  
Roosmarijn Verstraeten ◽  
Lieven Huybregts ◽  
...  
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