AN IMPROVED PNEUMATIC SIGMOIDOSCOPE
- 期刊名称JAMA: The Journal of the American Medical Association
- 作者Pennington, J. Rawson
- 卷第81卷
- 期第16期
- 印刷ISSN0098-7484
- 文件大小536.51KB
- 发表时间1923-10-20
- DOI10.1001/jama.1923.26510160001012
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