Fourthly, directional information can improve the recognition results of different features including LBP, Zernike moments, and fusion histogram spectrum.
Fourthly, data collection was not done blinded.
Fourthly, the geographic information system (GIS), which is an information system that processes geographic data, plays also important role in deploying LBSs since many features of GIS should be used to enhance service quality of current LBSs or develop more advanced LBSs [33].
Fourthly, even if information about the use psychotropic medications were available, we did not have information about the dosages or length of the use of the psychotropic medications.
39 Fourthly, we included information on non-organised (opportunistic) screening in Belgium and the Republic of Ireland using screening attendance statistics (table 1).
Fourthly, we had information on 94 000 serial measurements, enabling correction of risk ratios for regression dilution bias 22 and yielding results supporting the idea that CRP variants are related to lifetime variation in C reactive protein concentration.
Fourthly, to include information from the 9.5% of observations with missing pollution levels (PM10 or ozone, or both), we used a multiple imputation procedure with five imputations to handle the missing data.
Fourthly, the data have to be unambiguous and validated.
Fourthly, the lack of information on lifestyle risk factors (e.g., smoking and obesity) or detailed clinical information (e.g., severity of disease) limited our adjustment for these factors in the analyses.
Fourthly, our claims data do not have information on the duration or severity of AD, which is significantly related to healthcare cost and utilization [ 7, 26].
