PT - JOURNAL ARTICLE AU - G D Barr TI - Pneumatic otoscopy and tympanometry. DP - 1990 Mar 01 TA - British Journal of General Practice PG - 124--124 VI - 40 IP - 332 4099 - http://bjgp.org/content/40/332/124.1.short 4100 - http://bjgp.org/content/40/332/124.1.full SO - Br J Gen Pract1990 Mar 01; 40