scholarly journals Efficacy and causal mechanism of an online social media intervention to increase physical activity: Results of a randomized controlled trial

2015 ◽  
Vol 2 ◽  
pp. 651-657 ◽  
Author(s):  
Jingwen Zhang ◽  
Devon Brackbill ◽  
Sijia Yang ◽  
Damon Centola
PEDIATRICS ◽  
2017 ◽  
Vol 140 (6) ◽  
pp. e20171117 ◽  
Author(s):  
Jason M. Glanz ◽  
Nicole M. Wagner ◽  
Komal J. Narwaney ◽  
Courtney R. Kraus ◽  
Jo Ann Shoup ◽  
...  

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