PT - JOURNAL ARTICLE AU - W Merrill TI - Lung defence mechanisms against infection AID - 10.1183/09031936.93.03030372 DP - 1990 Mar 01 TA - European Respiratory Journal PG - 372--373 VI - 3 IP - 3 4099 - http://erj.ersjournals.com/content/3/3/372.short 4100 - http://erj.ersjournals.com/content/3/3/372.full SO - Eur Respir J1990 Mar 01; 3