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Laboratory and equipment conditions
| 2009 | 2014 | Significance | |
|---|---|---|---|
| N = 25 (%) | N = 25 (%) | McNemar test | |
| Stable electricity | 15 (60) | 22 (88) | 0.0704 |
| Light microscope available | 19 (76) | 23 (92) | 0.2888 |
| Microscope functions well | 23 (92) | 25 (100) | 0.4795 |
| Laboratory meets all three of the above conditions | 14 (56) | 20 (80) | 0.1489 |
