* Cardinal BJ, Engels HJ: Ginseng does not enhance psychological well-being in healthy, young adults: results of a double-blind, placebo-controlled, randomized clinical trial. J Am Diet Assoc, 101, 655-660, 2001 | * Cardinal BJ, Engels HJ: Ginseng does not enhance psychological well-being in healthy, young adults: results of a double-blind, placebo-controlled, randomized clinical trial. J Am Diet Assoc, 101, 655-660, 2001 |