title: Welsh pre-teens 'strongly aware' of e-cigarettes.
mesh_terms: D002648:Child; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D012907:Smoking / Q000331:legislation & jurisprudence / Q000639:trends*; D062789:Tobacco Products / Q000706:statistics & numerical data*; D006113:United Kingdom; D014852:Wales