title: Reply to Witwer.
authors.forename: Scott R
authors.initials: SR
authors.lastname: Baier
authors.forename: Fang
authors.initials: F
authors.lastname: Xie
authors.forename: Janos
authors.initials: J
authors.lastname: Zempleni
mesh_terms: D000818:Animals; D005260:Female; D015870:Gene Expression / Q000187:drug effects*; D006801:Humans; D007963:Leukocytes, Mononuclear / Q000187:drug effects*; D008297:Male; D035683:MicroRNAs / Q000493:pharmacokinetics*; D008892:Milk / Q000737:chemistry*
chemical_list: D035683:MicroRNAs