TY  - GEN
TY  - GEN
T1  - Data quality in longitudinal research
A2  - Magnusson, David
A2  - Bergman, Lars R.
LA  - eng
PP  - Cambridge
PB  - Cambridge University Press
YR  - 1990
UL  - https://kansalliskirjasto.finna.fi/Record/fikka.338745
SN  - 0-521-38091-X
KW  - Medicine : Research : Quality control.
KW  - Medicine : Longitudinal studies.
ER  -