We conducted base tilt table test (BTTT) in all patients and additional isoproterenol tilt table test (ITTT) in 18 patients.
所有老年患者全部完成基础倾斜试验，异丙肾上腺素药物倾斜试验18例。
We conducted base tilt table test (BTTT) in all patients and additional isoproterenol tilt table test (ITTT) in 18 patients.
所有老年患者全部完成基础倾斜试验，异丙肾上腺素药物倾斜试验18例。
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