“proctosigmoidoscopy”的概念、定义、翻译、参考文献-科学参考

单词	proctosigmoidoscopy
释义	proctosigmoidoscopy Examination of the lower colon using a sigmoidoscope, inserted into the rectum. A sigmoidoscope is a thin, tube-like instrument with a light and a lens for viewing. It may also have a tool to remove tissue to be checked under a microscope for signs of disease. Also called sigmoidoscopy.
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