Origin of Syrinx Fluid in Syringomyelia: A Physiological Study. Issue 2 (1st February 2019) - Heiss, John D; Jarvis, Katie; Smith, René K; Eskioglu, Eric; Gierthmuehlen, Mortimer; Patronas, Nicholas J; Butman, John A; Argersinger, Davis P; Lonser, Russell R; Oldfield, Edward H