PT - JOURNAL ARTICLE AU - Brian E. Heard TI - Further Observations on the Pathology of Pulmonary Emphysema in Chronic Bronchitics AID - 10.1136/thx.14.1.58 DP - 1959 Mar 01 TA - Thorax PG - 58--70 VI - 14 IP - 1 4099 - http://thorax.bmj.com/content/14/1/58.short 4100 - http://thorax.bmj.com/content/14/1/58.full SO - Thorax1959 Mar 01; 14