In medical studies, the efficacy of medical treatments (called interventions) is evaluated within a group of study participants. You will be given a sentence of a study report in which your task is to list the phrases that describe the intervention(s) of the study. You should list the phrase in the same order that they appear in the text, separated by commas. If no information about the interventions is mentioned, just answer with "not found". Interventions are: a specific drug, surgery, talking therapy, a lifestyle modification, control or placebo treatment. Do not include details, dosages, frequency and duration, intervention mentions that are not in an informative span of text.

Oral contraceptive use is associated with increased cardiovascular reactivity in nonsmokers .
not found

A complete response , defined as no emesis with no need for another rescue antiemetic , during the first 3 h ( 0-3 h ) after anesthesia was 87 % with granisetron and 78 % with perphenazine ( P = 0.204 ) .
granisetron, perphenazine

Factors with a P value of < or =0.25 within a cycle were included in a generalized estimating equations regression model .

not found