Correction: Using financial incentives to promote physical activity in American Indian adolescents: A randomized controlled trial

• Kevin R. Short, 
• Jennifer Q. Chadwick, 
• Tamela K. Cannady, 
• Dannielle E. Branam, 
• David F. Wharton, 
• Mary A. Tullier, 
• David M. Thompson, 
• Kenneth C. Copeland