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Perhaps `condition_end_datetime` should also be mandatory? (15)
Multiple Modifier with Single Procedure (5)
CDM 6 with Vocabulary 5 (3)
CDM - Vocabulary - Help (9)
How would I represent surgery duration (7)
THEMIS: New Initiative to create definitive conventions for data in the OMOP CDM ( 2 3 4 5 ) (90)
The prescribed drugs records beyond the Observation Period (4)
OMOP CDM and Clinical Trials (19)
New field in observation table (4)
Building drug_eras for RxNorm Extension ingredients (4)
Mapping Transfusion Data (17)
Location_history (7)
Choosing Among Common Data Models for Real World Data Analyses (2)
How to transform complex entry into CDM? (6)
What should be filled in the care_site table (7)
One Vocubulary schema for multiple CDM (5)
How to store events with empty dates (7)
Observation_event_id to link allergic reactions? (8)
Primary dx vs Secondary dx ( 2 ) (36)
Error: Index 0 out of bounds for length 0 (1)
Limit for days_supply, refills and quantity (9)
Where to put comments (3)
Visit Detail / preceding_visit_detail_id, visit_detail_parent_id (2)
How to Record that ETL applied date shifting to obscure personal information (7)
Oncology data use cases ( 2 ) (29)
Dose_Era for Truven (3)
Observation Period Flavors (First THEMIS-Focus Group 2, now discussed everywhere) (20)
Proposal: Identity Management Table for Standardized Linkage & De-Identification (4)
route_source_value and dose_unit_source_value in DRUG_EXPOSURE table (5)
OMOP and biobanks (9)
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