question: Compared to placebo what was the result of B. papyrifera (capsule 300 mg, twice a day) on California verbal learning test (CVLT), and symbol digit modality test (SDMT)?
context: Although the number of patients who improved after receiving the drug in the treatment group was more than the placebo group in CVLT and SDMT, such a difference was not statistically significant (P = 0.2000 for SDMT, P = 0.1700 for CVLT); r