Publications by authors named "John C Wirth"

Purpose: This study examined the efficacy of ginseng to modulate secretory immunoglobulin A (SIgA), exercise performance, and recovery from repeated bouts of strenuous physical exertion.

Methods: Using a double-blind, placebo-controlled, randomized design, 38 active healthy adults supplemented their diets with a standardized ginseng concentrate (400 mg.d-1 of G115; equivalent to 2 g of Panax ginseng C.

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Objective: To compare clinical and patient estimation of fetal weight to ultrasound estimation.

Study Design: Prospective study of clinical, patient and ultrasound estimation of fetal weight at term.

Results: A total of 200 pregnant women participated.

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