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## 第四部分、Projects & Workgroups
# Project Workgroups
OHDSI has a variety of ongoing projects lead by workgroup teams. We would be delighted to have your participation. Please contact the team lead …
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For the concept "Multiple birth" (4163851), can we add some descendant concepts that specify the birth status? Many of the ICD10CM codes mapped to it and its current descendants are for multiple birth…
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### Description
The database and related toolkits are intended to be designed and applied with OMOP CDM to introduce SDoH and Environmental datasets into the healthcare research.
The purpose and …
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### Is there an existing issue for this?
- [x] I have searched the existing issues
### Current Behavior
Hello, I have observed that the concept reuse is not working fine on the ICD10 codes. sharing…
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It is currently difficult to find clear documentation for a convention on how to use custom concepts (e.g. for internal use), as I mentioned [on the OHDSI forum](https://forums.ohdsi.org/t/custom-conc…
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@manlik-brownsrdr
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### Expected behavior
When adding attributes to a visit occurrence in the Atlas cohort builder the text should refer to "Visit".
### Actual behavior
A few of the text strings in the attribute…
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信息来源于[官方wiki](http://www.ohdsi.org/web/wiki/doku.php?id=welcome)
## 第一部分、Documentation
## 第二部分、Development
## 第三部分、Research Studies
## 第四部分、Projects & Workgroups
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Not sure if this is the correct place to place these issues.
For some databases on the NetworkDashboard EHDEN installation, the record of analysis_id=200 has a stratum_1 value of NULL.
This affect…