TY  - RPRT
TI  - The normal response to prolonged passive head up tilt testing.
AU  - M E Petersen
AU  - T R Williams
AU  - C Gordon
AU  - R Chamberlain-Webber
AU  - R Sutton
PY  - 2000
DO  - 10.1136/heart.84.5.509
UR  - https://pubmed.ncbi.nlm.nih.gov/11040011/
ID  - 11040011
ER  -