Hill, W. (1911). An Improved Œsophago-gastroscope, combining the Methods of Direct and Indirect Vision.
Chicago ZitierstilHill, William. An Improved Œsophago-gastroscope, Combining the Methods of Direct and Indirect Vision. 1911.
MLA ZitierstilHill, William. An Improved Œsophago-gastroscope, Combining the Methods of Direct and Indirect Vision. 1911.
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