Pace the heartbeat by double-heartbeat-frequency sound wave
1971 ◽
Vol 9
(14)
◽
pp. 1211-1216
◽
Keyword(s):
Keyword(s):
Keyword(s):
2006 ◽
Vol 119
(4)
◽
pp. 2101-2105
◽
2007 ◽
Vol 29
(2)
◽
pp. 113-121
◽
Keyword(s):
Keyword(s):