Efficiency of heart rate and heart rate difference at different time points during head-up tilt test in the diagnosis of postural tachycardia syndrome in children and adolescents
WANG Shuo, ZOU Run-Mei, CAI Hong, DING Yi-Yi, XIAO Hai-Hui, WANG Xin, LI Fang, WANG Yu-Wen, WANG Cheng
CJCP . 2020, (7): 780 -784 .  DOI: 10.7499/j.issn.1008-8830.2003133