TY  - RPRT
TI  - Puffer, pump or pills: does it really matter?
AU  - L I Landau
PY  - 1986
DO  - 10.1111/j.1440-1754.1986.tb00172.x
UR  - https://pubmed.ncbi.nlm.nih.gov/2872879/
ID  - 2872879
ER  -