Smooth muscle-derived progenitor cell myofibroblast differentiation through KLF4 downregulation promotes arterial remodeling and fibrosis. - Lu S; Jolly AJ; Strand KA; Dubner AM; Mutryn MF; Moulton KS; Nemenoff RA; Majesky MW; Weiser-Evans MC (JCI insight, 2020)