Fang, Qiliang http://orcid.org/0000-0002-1161-9592
Maeda, Keiichi
Kuncarayakti, Hanindyo http://orcid.org/0000-0002-1132-1366
Sun, Fengwu
Gal-Yam, Avishay http://orcid.org/0000-0002-3653-5598
Article History
Received: 10 August 2018
Accepted: 24 January 2019
First Online: 4 March 2019
Competing interests
: The authors declare no competing interests.