Which of the following techniques are used to diagnose superficial fungal infections?

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Microscopic analysis of skin scrapingsPotassium hydroxide (KOH) preparationExamination under Wood's lampAll the methods listed above

Explanation

Diagnosis of superficial fungal infections can be achieved through multiple methods including microscopic examination of skin scrapings, KOH staining to visualize fungal elements, and using a Wood's lamp for fluorescence detection. Therefore, all the listed techniques are applicable.