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

by Ohlsson Henrik, Merlo Juan, Hjerpe Per, Bengtsson Boström Kristina, Lindblad Ulf
Published 2010-04-01

Variation in plasma calcium analysis in primary care in Sweden - a multilevel analysis

by Eggertsen Robert, Ohlsson Henrik, Hjerpe Per, Dalemo Sofia, Merlo Juan, Boström Kristina
Published 2010-05-01

Coding of procedures documented by general practitioners in Swedish primary care-an explorative study using two procedure coding systems

by Vikström Anna, Hägglund Maria, Nyström Mikael, Strender Lars-Erik, Koch Sabine, Hjerpe Per, Lindblad Ulf, Nilsson Gunnar H
Published 2012-01-01