Ian Williamson, Sarah Benge, Sheila Barton, Stavros Petrou, Louise Letley, Nicky Fasey et al
Williamson I, Benge S, Barton S, Petrou S, Letley L, Fasey N et al.
Topical intranasal corticosteroids in 4-11 year old children with persistent bilateral otitis media with effusion in primary care: double blind randomised placebo controlled trial
BMJ 2009; 339 :b4984
doi:10.1136/bmj.b4984