TY  - BOOK
AU  - Polgar,George
AU  - Varuni,Promadhat
TI  - Pulmonary function testing in children: techniques and standards 
U1  - 618.922075 
PY  - 1971///
CY  - Philadelphia
PB  - Saunders W. B.
KW  - Pulmonary function tests
KW  - Pediatric respiratory diseases
KW  - Diagnosis
N1  - Includes index
ER  -