尊敬的用户：

  由于设备升级维护，我们的一些web系统在四月份会暂停服务，其中新冠病毒信息库ncov、GSA数据库系统和GSA-Human数据库系统继续提供服务，对此造成的不便深表歉意。如有紧急事项（包括科学计划项目数据汇交事宜），请通过下面的电话联系我们。

  感谢您长期以来对我们的信任和支持。系统升级维护完成后，我们将一如既往的为大家提供更安全可靠和完善的数据服务。

  再次感谢您的理解！

  国家基因组科学数据中心

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Dear Users,

Due to the server update and maintenance, some of our web services will not be available during April. We apologize for any inconveniences this may cause. For emergency enquiries, please contact us at the telephone numbers listed below.

Many thanks for your long-standing trust and support. Once the maintenance is completed, we will continue to provide you with better services.

Thanks again for your understanding.
National Genomics Data Center

2019CoVR: +86-010-84097845, https://bigd.big.ac.cn/ncov
GSA: +86-010-84097340, https://bigd.big.ac.cn/gsa/
GSA-Human: +86-010-84097340, https://bigd.big.ac.cn/gsa-human/
GWH: +86-010-84097298
GVM: +86-010-84097620
Database Commons: +86-010-84097845
Data submissions: +86-010-84097340
Email: bigd-pi@big.ac.cn