“…The trials interventions were oral nicotinamide, 10,24 oral selenium, 11 photodynamic therapy (PDT) with 5‐aminolevulinate (ALA), 12,18 oral celecoxib, 13,25 oral beta carotene, 14 carbon dioxide laser, 9 30% trichloroacetic acid peel, 9 5% fluorouracil cream, 9,23 low‐fat diet, 15 oral acitretin, 16 oral retinol, 8,17 oral isotretinoin 10 mg, 21 tretinoin 0.1% cream, 22 sunscreen, 19 PDT with methyl aminolevulinate (MAL), 20 imiquimod 5% cream, 20 oral vismodegib, 26,28 tazarotene 0.1% cream, 27 and T4N5 liposome lotion (Table 2). 29 …”