TY  - RPRT
TI  - Interviewer variability - quality aspects in a case-control study.
AU  - Kerstin J Blomgren
AU  - Anders Sundström
AU  - Gunnar Steineck
AU  - Bengt-Erik Wiholm
PY  - 2006
DO  - 10.1007/s10654-006-0017-7
UR  - https://pubmed.ncbi.nlm.nih.gov/16685577/
ID  - 16685577
ER  -