Phytochemical characterization and in vitro wound healing activity of leaf extracts from Combretum mucronatum Schum. & Thonn.: oligomeric procyanidins as strong inductors of cellular differentiation - Kisseih, E; Lechtenberg, M; Petereit, F; Sendker, J; Zacharski, D; Brandt, S; Agyare, C; Hensel, A (J Ethnopharmacol, 2015)