Page History

Timeframes, fixed points in time, and other milestones may be defined in the context of a study as references to which the timing of other collected observations is related. In such cases, timeframes are referred to as reference periods and such fixed points in time and milestones are referred to as reference time points in this guide.  The The following will be collected using TIG Collection or CDASH Model Timing fields when references for the timing of other observations are defined:

...