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_e90652 _aMAIN |
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| 041 | _aEnglish | ||
| 082 | _a610 J199L | ||
| 100 | _aJain, Anil K | ||
| 245 | 0 | _aStrudy of upper gastrointestinal tract mucosa in chronic smokers by serial endoscopic biopsies | |
| 300 | _a67 p. | ||
| 942 | _cTH | ||
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