TY  - RPRT
TI  - Differences in heart rate variability between young and elderly normal men during graded head up tilt.
AU  - J Akatsu
AU  - M Kumashiro
AU  - S Miyake
AU  - N Komine
AU  - Y Takahashi
AU  - M Hashimoto
AU  - H Togami
AU  - K Inoue
PY  - 1999
DO  - 10.2486/indhealth.37.68
UR  - https://pubmed.ncbi.nlm.nih.gov/10052302/
ID  - 10052302
ER  -