Nakajima, Ryota http://orcid.org/0000-0003-1708-7109
Chen, Chong http://orcid.org/0000-0002-5035-4021
Iwase, Ryoichi
Yamamoto, Hiroyuki
Fujikura, Katsunori http://orcid.org/0000-0001-7877-4055
Funding for this research was provided by:
The Ministry of the Environment Japan (S9)
Article History
Received: 12 September 2018
Accepted: 29 January 2019
First Online: 13 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants performed by any of the authors. The present study is a video image analysis study and thus no live samples of any sort were collected and no experiments were carried out.