title: Response to Letter by Gaurav Sikri and Srinivasa AB.
authors.affiliation: Department of Emergency Medicine, Chang Gung Memorial Hospital, Keelung Branch, Keelung, Taiwan, College of Medicine, Chang Gung University, Taoyuan, Taiwan, Taiwan Wilderness Medical Association, Taipei, Taiwan.
authors.forename: Cheng-Wei
authors.initials: CW
authors.lastname: Chan
authors.affiliation: Taiwan Wilderness Medical Association, Taipei, Taiwan, Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Chiayi Taiwan and Altitude Research Center, Department of Emergency Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA mountainwangsh@gmail.com.
authors.forename: Shih-Hao
authors.initials: SH
authors.lastname: Wang
mesh_terms: D000531:Altitude; D000532:Altitude Sickness / Q000453:epidemiology*; D002648:Child; D006801:Humans; D014195:Travel