App based education programme to reduce salt intake (AppSalt) in schoolchildren and their families in China: parallel, cluster randomised controlled trial
Feng J. He, Puhong Zhang, Rong Luo, Yuan Li, Yuewen Sun, Fengge Chen +16 more
BMJ
Abstract
Chinese Clinical Trial Registry ChiCTR1800017553.
Concepts
MedicineCluster randomised controlled trialCluster (spacecraft)Intervention (counseling)PediatricsRandomized controlled trialFamily historyDemography