%0 Journal Article %A A Rizzo %T Standardization of the measurement of transfer factor: allowance for water vapour in the analysis of helium concentration %D 1995 %R 10.1183/09031936.95.08101814 %J European Respiratory Journal %P 1814-1814 %V 8 %N 10 %U https://erj.ersjournals.com/content/erj/8/10/1814.full.pdf