OWN - Quintessenz Verlags-GmbH CI - Copyright Quintessenz Verlags-GmbH OCI - Copyright Quintessenz Verlags-GmbH TA - JT - Journal of Aligner Orthodontics IS - 2514-7560 (Electronic) IS - 2514-7552 (Print) IP - 2 VI - 5 PST - ppublish DP - 2021 PG - 87-88 LA - en TI - Can we learn from the coronavirus pandemic? FAU - Schupp, Werner AU - Schupp W CN - AB - AID - 1745885