Correction: The Murine Coronavirus Hemagglutinin-esterase Receptor-binding Site: A Major Shift in Ligand Specificity through Modest Changes in Architecture

• Martijn A. Langereis, 
• Qinghong Zeng, 
• Balthasar A. Heesters, 
• Eric G. Huizinga, 
• Raoul J. de Groot