RT Journal Article SR Electronic T1 Hearing crackles: why all GPs should pass PACES JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 12 OP 12 DO 10.3399/bjgp17X688501 VO 67 IS 654 A1 Suresh Pathak YR 2017 UL http://bjgp.org/content/67/654/12.2.abstract AB