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The Effects of Propofol With and Without Ketamine on Human Cerebral Blood Flow Velocity and CO2 ResponseKazuyuki Sakai, Koji Sumikawa, Sungsam Cho et al.|Anesthesia & Analgesia|2000Cited by 32
Quantitative evaluation of gastric contents using ultrasoundToru Fujigaki, Koji Sumikawa, Makoto Fukusaki et al.|Journal of Clinical Anesthesia|1993Cited by 32
A Comparison of Coronary Hemodynamics During Isoflurane and Sevoflurane Anesthesia in DogsMayumi Hirano, Koji Sumikawa, Toru Fujigaki et al.|Anesthesia & Analgesia|1995Cited by 22
Effects of Clonidine on Human Middle Cerebral Artery Flow Velocity and Cerebrovascular CO2 Response During Sevoflurane AnesthesiaT Maekawa, Koji Sumikawa, SiHyun Cho et al.|Journal of Neurosurgical Anesthesiology|1999Cited by 16