Cite
APA Citation
Cozzolino, F., Abraha, I., Orso, M., Mengoni, A., Cerasa, M. F., Eusebi, P., Ambrosio, G., & Montedori, A. (2017). protocol for validating cardiovascular and cerebrovascular ICD-9-CM codes in healthcare administrative databases: the Umbria Data Value Project. BMJ open, 7(3), . http://access.bl.uk/ark:/81055/vdc_100135543041.0x000003