Definition: Given an abstract, indicate which of the provided candidate titles (Option1 and Option2) best describes it (respond with the text of the title, not option1/2).
Input: Abstract: Low nanogram and picogram quantities of cocaine metabolite equivalents were detected in extracts from perspiration stains, menstrual bloodstains, and hair using radioimmunoassay. The theory of drug inclusion in hair and its significance are discussed.
Which is the apt title for the abstract? option1: Detection of cocaine metabolite in perspiration stain, menstrual bloodstain, and hair. option2: Cerebral vasospasm: a theoretical relationship between systolic thrust and pia-arachnoid fibers.
Output:
Detection of cocaine metabolite in perspiration stain, menstrual bloodstain, and hair.