RT Journal Article SR Electronic T1 Extent of cotton-bud use in ears JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 722 OP 722 DO 10.3399/bjgp11X613089 VO 61 IS 593 A1 James Hickman YR 2011 UL http://bjgp.org/content/61/593/722.1.abstract AB