Conceptualization: Brian W. L. Wong, Urs Maurer; Methodology: Brian W. L. Wong, Urs Maurer; Investigation: Brian W. L. Wong; Software: Brian W. L. Wong; Formal analysis: Brian W. L. Wong, Urs Maurer; Writing - original draft preparation: Brian W. L. Wong; Writing - review and editing: Brian W. L. Wong, Shuting Huo, Urs Maurer; Funding acquisition: Urs Maurer; Resources: Urs Maurer; Supervision: Urs Maurer