Answer to the Letter to the Editor of T. Imamura concerning “The incidence of myocardial infarction after lumbar spine surgery” by Harwin B, Formanek B, Spoonamore M, Robertson D, Buser Z, Wang JC (Eur Spine J. 2019; doi:10.1007/s00586-019-06072-4)

[摘要] We appreciate the enthusiasm and interest of reviewer in our paper, and the points brought up by the reviewer are important questions for future studies.