Promoting physical activity in middle school girls: Trial of Activity for Adolescent Girls.
              
            
            
  
    
      
        Webber LS, Catellier DJ, Lytle LA, Murray DM, Pratt CA, Young DR, Elder JP, Lohman TG, Stevens J, Jobe JB, Pate RR; TAAG Collaborative Research Group.
        
      
    
    Webber LS, et al.
    Am J Prev Med. 2008 Mar;34(3):173-84. doi: 10.1016/j.amepre.2007.11.018.
    Am J Prev Med. 2008.
  
  
  PMID: 18312804
  Free PMC article.
  
    
  
  Clinical Trial.