相关费用：选择性费用︾Gold open access:
SSR authors have the option of requesting gold OA. Authors should note that due to space constraints, the journal cannot guarantee that all requests will be accommodated. If gold OA is approved, the fee is $2,500. The OA request should be made at the time of submission, but not later than the time of acceptance. Articles published as gold OA are made available under a CC BY-NC license. If a CC BY or other license is required by your funding body, please notify the editorial office at the time you submit your manuscript. Articles published under a CC BY license are subject to an additional fee.