TY  - RPRT
TI  - Personal view: balloon, where do you fly?
AU  - B J Messmer
PY  - 1987
DO  - 10.1093/oxfordjournals.eurheartj.a062188
UR  - https://pubmed.ncbi.nlm.nih.gov/2961568/
ID  - 2961568
ER  -