Macinga Hand Sanitizer footnotes

 *Adapted from: David R. Macinga, PhD, and James W. Arbogast, PhD, Hand sanitizers, in Microorganisms in Cosmetics, Carol Stream, IL: Allured Business Media, Ch 30 (2009)

a The PURELL brand hand sanitizer is a product of Johnson & Johnson.
b iPod is a product and brand of Apple Inc.