drugs.md

@@ -19,10 +19,21 @@ To compare with RxNorm, CIS represents Branded_Drug or Clinical_Drug. CIP repres
 BDPM was integrated in Athena: https://github.com/OHDSI/Vocabulary-v5.0/tree/master/BDPM  
 La base de données publiques des médicaments (BDPM) is available here: http://base-donnees-publique.medicaments.gouv.fr  
 BDPM contains information about CIS and CIP (not UCD). BDPM contains only the marketed drugs in France the last 3 years till now. The database is updated every month.  
-Exhaustiveness of BDPM concerning CIS and CIP can be found here: http://agence-prd.ansm.sante.fr/php/ecodex/telecharger/telecharger.php
+Exhaustiveness of BDPM concerning CIS and CIP can be found in the **ANSM database**: http://agence-prd.ansm.sante.fr/php/ecodex/telecharger/telecharger.php
 
 ## Athena BDPM
 ![morphine_chlorydrate](./images/morphine_chlorydrate.png)
+BDPM data, RxNorm and RxNorm extension were downloaded on the Athena website. The CSV files were transformed to be visualised with Ontodia. The visualization is available here: https://www.erias.fr/omop_bdpm/
+
+French marketed products are mapped to RxNorm extension or RxNorm concepts when possible. The concept_code corresponds to the CIP code in the BDPM. 
+
+## Mappings UCD codes to standard terminologies
+French agency ATIH provides to hospital UCD codes: https://www.atih.sante.fr/enquete-achat-et-consommation-medicaments-l-hopital-2019
+An Excel file containing the list of UCD codes be found here: http://www.atih.sante.fr/sites/default/files/public/content/3538/ucd_2019.xlsx
+
+To sum-up we have: 
+*  CIS-CIP relations in the **ANSM-database**
+*  CIS-UCD relations in our local hospital database system