TY - RPRT TI - [Normal values for spirometry lung function values and peak flow for 7-18-year-old probands]. AU - H Luttmann AU - R Kaaden AU - L Kreienbrock AU - C Treiber-Klötzer AU - H E Wichmann PY - 1997 UR - https://pubmed.ncbi.nlm.nih.gov/9132747/ ID - 9132747 ER -