However, the effect appeared to be reduced in formula feeding cultures. The analyses included eleven randomized controlled trials conducted at 13 study sites [11]. In another meta-analyses published recently by Renfrew and colleagues [12], 67 research reports from 21 countries involving 56,451 mothers receiving breastfeeding support for variable periods were examined. The authors found a positive impact on exclusive breastfeeding (in particular) and any breastfeeding rates in all of these studies. A combination of community-level mother support (lay support) and professional support is more effective than professional support alone, the authors concluded.