Younger women were more likely to have a higher number of surrogate relationships and tended to benefit from greater levels of support from their surrogate families than did older inmates (Loper and Gildea 2004).
Nevertheless, it remains difficult to completely discern causal air pollutant(s) from their surrogate markers.
For patients who were unable to give consent themselves, consent was sought from their surrogate decision maker.
These results show that the eight depression time series used in this study cannot be distinguished from their linear surrogates using nonlinear and linear in-sample forecasting methods.
The original time series cannot be distinguished from their linear surrogates when using nonlinear test statistics, nor is there an improvement in forecast error for nonlinear over linear forecasting methods.
Figure 2 shows the results, with the sample acf shown for lags 1 to 6. Seven of the eight time series are distinct from their shuffle surrogates, showing that they have some serial correlation.
Informed consent was obtained from all subjects or from their appropriate surrogates.
Informed consent was obtained from subjects or from their legal surrogates before enrollment.
Just eight separate pleas from politicians and their surrogates, most supporting Mr. Romney.
