adverse event investigation的用法和样例：
- Results. Of 25 subjects enrolled, scleral icterus was the most common adverse event (3 patients [12.5%]).
- Were the staff involved in the adverse event or close call properly qualified and trained to perform their functions?
- Keyword: ZD1839 NSCLC Disease control rates Adverse events.
- Gynecomastia, with or without breast pain, is a frequent adverse event of treatment with this class of drugs.