Only validated examination instruments were used.
However, the results of the subgroup analysis showed that different examination instruments had similar results.
In many respects, hospital records should not always be regarded as scientifically correct examination instruments.
To ensure standardized processing, all investigators and study team members will be formally educated on the questionnaire and the examination instruments.
Fieldworkers demonstrated the blood collection and clinical examination instruments to be used and passed these around the group so that women could see and handle these items for themselves.
We present a critical examination of instrument characteristics and spectral analysis, one which indicates no tendency for systematic or interference effects that could contaminate observed OH abundances or their variations.
To determine the use of medication within the last 7 days before the examination an instrument for database-assisted online collection of medication data (IDOM) was applied [ 17].
