title: Mantel unhyphenated.
authors.affiliation: Statistics Collaborative, Inc., 1710 Rhode Island Avenue, NW, Suite 200, Washington DC 20036, USA. janet@statcollab.com
authors.forename: J
authors.initials: J
authors.lastname: Wittes
mesh_terms: D004813:Epidemiology / Q000266:history; D049673:History, 20th Century; D013223:Statistics as Topic / Q000266:history*; D014481:United States