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You searched for: Creator Personal Names Bletner, J. K. (James Karl), 1921- Remove constraint Creator Personal Names: Bletner, J. K. (James Karl), 1921- Creator Personal Names Weakley, Charles Edward, 1885- Remove constraint Creator Personal Names: Weakley, Charles Edward, 1885- All Creators Olson, N. O. Remove constraint All Creators: Olson, N. O. All Subjects Birds--Diseases--Prevention and control. Remove constraint All Subjects: Birds--Diseases--Prevention and control. All Subjects Tetracyclines. Remove constraint All Subjects: Tetracyclines.

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