Jiashen Tian,
Du, Jing
Han, Jiabo
Song, Xinran
Lu, Zhichuang
Article History
Received: 18 March 2020
Revised: 21 September 2020
Accepted: 22 September 2020
First Online: 5 April 2021
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interests.</i> The authors declare that they have no conflict of interest.
: <i>Statement on the welfare of animals.</i> All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.
: Samples of spotted seals collected in Liaodong Bay, China, were authorized under the Ministry of Agriculture and Rural Affairs of the People’s Republic of China, permit no. 1376.