Effect of web-based lifestyle modification on weight control: a meta-analysis.

Int J Obes (Lond) 2012;36:675-85

Kodama S, Saito K, Tanaka S, Horikawa C, Fujiwara K, Hirasawa R, Yachi Y, Iida KT, Shimano H, Ohashi Y, Yamada N, Sone H