title: Response to "Mutation frequency vs. mutation patterns: a comparison of the results in spleen and Peyer's patches"
authors.affiliation: Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, 5600 Nathan Shock Drive, Baltimore, MD 21224, United States, Tel: +1 410 558 8561, fax: +1 410 558 8157, E-mail address: gearhartp@grc.nia.nih.gov.
authors.forename: Patricia J
authors.initials: PJ
authors.lastname: Gearhart