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No head-to-head trials specifically studied the switching protocol
Polakof, S
We first looked at bestselling niacinamide serum formulas from reputable brands, such as Paulas Choice, Sunday Riley, Cosrx and many others
Comparison of demographic characteristics and clinical variables between two study groups were assessed using 2 Yatess continuity correction or Fishers exact tests for categorical variables and Mann-Whitney u test for non-normally distributed continual variables
Weight as a trend rather than as a daily verdict
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