| 单词 |
purified protein derivative of tuberculin |
| 释义 |
purified protein derivative of tuberculin pu·ri·fied pro·tein de·riv·a·tive of tu·ber·cu·lin (PPD), purified tuberculin containing the active protein fraction; the tuberculin from which it is prepared differs from tuberculin (1) chiefly in that the bacteria are grown in a synthetic rather than in a broth medium.Patient discussion about purified protein derivative of tuberculinQ. What exactly is PPD? I heard it is a substance in hair color and that some women are allergic to it How can I know if I’m allergic to it?A. That sounds nasty... so how can I know if i'm allergic to it or not? More discussions about purified protein derivative of tuberculin |
| 随便看 |
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