PT - JOURNAL ARTICLE AU - Anthony Seaton TI - Reply AID - 10.1136/thx.39.5.397-a DP - 1984 May 01 TA - Thorax PG - 397--398 VI - 39 IP - 5 4099 - http://thorax.bmj.com/content/39/5/397.2.short 4100 - http://thorax.bmj.com/content/39/5/397.2.full SO - Thorax1984 May 01; 39