We have resumed most of our activities. However, given the situation regarding COVID-19, we will assess any new requests based on their urgency and the date of receipt so that we can provide services to our clients in a fair manner. Additionally, response times may be delayed.

We are sorry for any inconvenience this may cause and thank you for your understanding. We encourage you to check our site frequently for the latest updates to our services.

Data contributors

CHIN would like to thank the following institutions for the important contribution of data in the building of this collective resource.
View their collection by selecting from the following list of institutions:

Contact information for this web page

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