Retrospective Study
Copyright ©The Author(s) 2017.
World J Gastrointest Endosc. Sep 16, 2017; 9(9): 480-485
Published online Sep 16, 2017. doi: 10.4253/wjge.v9.i9.480
Figure 1
Figure 1 Low-pressure spray of liquid nitrogen that freezes tissue at -196 °C.