Published in
Wiley, Pharmacoepidemiology & Drug Safety, 11(22), p. 1195-1204, 2013
DOI: 10.1002/pds.3504
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Accuracy of International Classification of Diseases, 9th Revision, Clinical Modification codes for upper gastrointestinal complications varied by position and age: a validation study in a cohort of nonsteroidal anti-inflammatory drugs users in Friuli Venezia Giulia, Italy
Journal article published in 2013 by
Federica Pisa,
Jordi Castellsague,
Daniela Drigo,
Nuria Riera-Guardia,
Manuela Giangreco,
Valentina Rosolen 
,
Elena Clagnan,
Loris Zanier,
Susana Perez-Gutthann,
Fabio Barbone
,
Elena Clagnan,
Loris Zanier,
Susana Perez-Gutthann,
Fabio Barbone
This paper is available in a repository.
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