Hand holding a test device to detect Cotinine (a bi-product of Nicotine) in the urine to determine whether a patient has been smoking. Here,the two purple lines give a negative result. See images 1 and 2 in which urine is placed on the test device | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Marazzi, Dr. P. |
Bildgröße: | 5315 px × 3520 px |
Modell-Rechte: | vorhanden |
Restrictions: |
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