Hjerpe, P., Merlo, J., Ohlsson, H., Bengtsson Boström, K., & Lindblad, U. (2010). Validity of registration of ICD codes and prescriptions in a research database in Swedish primary care: A cross-sectional study in Skaraborg primary care database. BioMed Central.

Hjerpe, Per, Juan Merlo, Henrik Ohlsson, Kristina Bengtsson Boström, و Ulf Lindblad. Validity of Registration of ICD Codes and Prescriptions in a Research Database in Swedish Primary Care: A Cross-sectional Study in Skaraborg Primary Care Database. BioMed Central, 2010.

Hjerpe, Per, et al. Validity of Registration of ICD Codes and Prescriptions in a Research Database in Swedish Primary Care: A Cross-sectional Study in Skaraborg Primary Care Database. BioMed Central, 2010.