References
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- Long CC, Finlay AY, Averill RW. The rule of hand: 4 hand areas = 2 FTU = 1 g. Arch Dermatol. 1992;128:1129–1130.
- Kalavala M, Mills CM, Long CC, Finlay AY. The finger-tip unit: A practical guide to topical therapy in children. J Dermatolog Treat. 2007;18:319–320.