Sentence examples for based studies do not from inspiring English sources
Retrospective register based studies do not need ethical approval in Denmark.
According to Danish law, questionnaire based studies do not need approval by ethical and scientific committees, nor informed consent.
According to Danish law, questionnaire and register based studies do not need approval by ethical and scientific committees.
According to Danish law, questionnaire and register based studies do not need approval by ethical and scientific committees, nor informed consent.
According to Korean law (Rules and Regulations of the Korean Food and Drug Administration), questionnaire and register based studies do not need approval by ethical and scientific committees, and do not require informed consent [ 41].
On the other side, the results of a recent RNAi based study do not support a role for Gα proteins in odor sensitivity, although small influences of G-proteins on the odor evoked spike rates were observed for some odorants [30].
6 However, a previous population based study did not find a significant association of use of each drug with intracranial haemorrhage.
One possible explanation is that the population based study did not control for comorbid IBS, a FGD that is known to be more common in females [ 29].
41 42 However, the UK population based study did not find a significant association between objectively measured SHS exposure using exhaled carbon monoxide (CO) and poor mental health.
