Corrigendum: Berberine Improves Benign Prostatic Hyperplasia via Suppression of 5 Alpha Reductase and Extracellular Signal-Regulated Kinase in Vivo and in Vitro - Dong-Hyun Youn; Dong-Hyun Youn; Jinbong Park; Jinbong Park; Hye-Lin Kim; Yunu Jung; Yunu Jung; JongWook Kang; JongWook Kang; Seona Lim; Seona Lim; Gahee Song; et al. (Frontiers Media S.A., 2019)