( "Calendula"[Mesh] OR "Calendula officinalis"[tiab] OR Calendula[tiab] OR "C. officinalis"[tiab] OR "pot marigold"[tiab] OR marigold[tiab] OR "Calendulae flos"[tiab] ) AND ( "Wound Healing"[Mesh] OR "Wounds and Injuries"[Mesh] OR "Ulcer"[Mesh] OR "Burns"[Mesh] OR "Dermatitis"[Mesh] OR wound*[tiab] OR ulcer*[tiab] OR burn*[tiab] OR dermatitis[tiab] OR "radiation dermatitis"[tiab] OR radiodermatitis[tiab] OR "surgical wound*"[tiab] OR incision*[tiab] OR laceration*[tiab] OR abrasion*[tiab] OR episiotomy[tiab] OR "pressure ulcer*"[tiab] OR "venous ulcer*"[tiab] OR "diabetic foot ulcer*"[tiab] OR reepithelialization[tiab] OR re-epithelialization[tiab] OR cicatriz*[tiab] ) AND ( randomized controlled trial[pt] OR controlled clinical trial[pt] OR random*[tiab] OR placebo[tiab] OR trial[tiab] OR "clinical study"[tiab] ) NOT (animals[mh] NOT humans[mh]) Filters: Clinical Trial, Clinical Trial, Phase III, Randomized Controlled Trial