1.
Prax Klin Pneumol
; 33(8): 917-33, 1979 Aug.
Article
in German
| MEDLINE
| ID: mdl-493237
2.
Munch Med Wochenschr
; 114(46): Suppl 9:41-2, 1972 Nov 17.
Article
in German
| MEDLINE
| ID: mdl-4678707