PT - JOURNAL ARTICLE AU - D Cramer TI - Standardization of the measurement of transfer factor AID - 10.1183/09031936.93.06101577 DP - 1993 Nov 01 TA - European Respiratory Journal PG - 1577--1578 VI - 6 IP - 10 4099 - http://erj.ersjournals.com/content/6/10/1577.short 4100 - http://erj.ersjournals.com/content/6/10/1577.full SO - Eur Respir J1993 Nov 01; 6