(Q44006894)
Statements
1 reference
Simultaneous washout of helium and sulfur hexafluoride in healthy subjects and patients with chronic bronchitis, bronchial asthma, and emphysema (English)
von Nieding G
1 reference
G. von Nieding
H. Löllgen
U. Smidt
1 October 1977
1 reference
1 reference