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Welcome to OHDSI (18)
Covid19 test record for both negative and positive patients (1)
N3C and OMOP (3)
Access to COVID-19 MS Teams (4)
Alpha blockers associated with >50% reduction in mortality in our retrospective study (5)
[covid19] ETL help for converting your data into OMOP (10)
Index date from the cohort definition function (6)
Why don't relationship concepts belong to different vocabularies beyond 'Relationship'? (7)
Independent development for each database platform? (9)
Where does blood type go? (3)
How to store Psychiatric Scale into OMOP data base? ( 2 ) (22)
GPI conversion to NDC (4)
How can i store the discription and report of Head CT scan into CDM? (20)
Looking for collaborators (2)
What is the proper way to map to a standard concept if your source has a RxNorm Brand Name? (4)
Sharing: Call to Action to the Tech Community on New Machine Readable COVID-19 Dataset (1)
mapping between concept code to ICD-10-PCS (2)
Update on global antibiotic use for acne characterization protocol (2)
NDC and GCN (2)
Shiny App competition (1)
American/Atlantic Causal Inference Conference (1)
Atlas - What should be Cohort Exit criteria? (2)
Legal Questions for Atlas (3)
Component within OHDSI that would be an official research network (1)
OMOP CDM versions and backwards compatibility with ATLAS and ACHILLES (1)
How missing values are covered by PLP (2)
Do we have a steering committee meeting today? (3)
Why same count Person and Records in Atlas cohort generation (5)
Why have drug strength invalid_reason? (3)
Defining interval period between 2 same blood test within a week before index date of a drug exposure (3)