RT Journal Article SR Electronic T1 Otitis media: prevention instead of prescription JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 364 OP 365 DO 10.3399/bjgp08X280281 VO 58 IS 550 A1 Ryan Kerstein YR 2008 UL http://bjgp.org/content/58/550/364.2.abstract AB