PLEASANT: Preventing and Lessening Exacerbations of Asthma in School-age children Associated with a New Term – a cluster randomised controlled trial and economic evaluation oleh Steven A Julious, Michelle J Horspool, Sarah Davis, Mike Bradburn, Paul Norman, Neil Shephard, Cindy L Cooper, W Henry Smithson, Jonathan Boote, Heather Elphick, Amanda Loban, Matthew Franklin, Wei Sun Kua, Robin May, Jennifer Campbell, Rachael Williams, Saleema Rex, Oscar Bortolami