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The signs and symptoms presented in the patients.
| Symptoms | Frequency no. | Signs | Frequency no. |
|---|---|---|---|
| Pain | 10 | Fang mark | 6 |
| Paresthesia | 7 | Swelling | 9 |
| Hyperesthesia | 2 | Discoloration | 8 |
| Fever | 12 | Bleeding | 2 |
| Tachycardia | 12 | Bullae | 4 |
| Abnormal blood pressure | 12 | Tissue necrosis | 11 |
