Erratum: Withdrawal notice to: Teaching Biotechnology students in Chemical Engineering in the time of COVID-19: assessment adaptation to digitalization [Education for Chemical Engineers 34 (2021) 94?105] (Education for Chemical Engineers (2021) 34 (94?105), (S1749772820300567), (10.1016/j.ece.2020.11.005)) - Ripoll V; Godino-Ojer M; Calzada J (Education For Chemical Engineers, 2021)