Table 3.
Serum zinc levels in cases of a acne vulgaris
| Grades of acne | No of cases | Mean serum zinc level (µgm/100 ml) |
|---|---|---|
| I | 1 | 94 |
| II | 9 | 72 |
| III | 4 | 61 |
| IV | 1 | 86 |
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