Reference

All functions
collapse_ae_episodes()	Collapse adverse event records into episodes
derive_pop_flags()	Derive population flags from a rules table
grade_lab()	Grade laboratory results against published or sponsor toxicity criteria
grading_table()	Validate or load a laboratory toxicity grading table
pop_rules()	Validate a population flag rules table
sas_note()	Which SAS idiom does this derivation replace?