Patterns of eligibility criteria

The file contains a set of patterns that frequently occur in eligibility criteria of clinical trials. Each pattern has associated regular expressions which can be used to detect them. The patterns are classified according to several dimensions: - time independent status (present, absent, conditional) - temporal status (prior, current, planned) - specification type The patterns were initially described in [1]. The evaluation of the algoritm which detects patterns using given regular expressions is described in [2]. To see examples of instantiated patterns check [3]