TY  - BOOK
AU  - Porter,Ruth
AU  - Birch,Joan
ED  - Study Group on the Identification of Asthma
ED  - Ciba Foundation
TI  - Identification of asthma: Ciba Foundation Study Group no. 38 
SN  - 0700015205
PY  - 1971///
CY  - Edinburgh
PB  - 15 Teviot Place
KW  - Asthma
KW  - Congresses
N1  - Includes bibliographical references
ER  -