title: Response to a letter from Dr. Timothy A. DeRouen.
authors.affiliation: School of Dental Medicine, University of Pennsylvania Philadelphia, Pennsylvania.
authors.forename: Marjorie
authors.initials: M
authors.lastname: Jeffcoat
mesh_terms: D005260:Female; D017048:Health Care Costs / Q000706:statistics & numerical data*; D006760:Hospitalization / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D017063:Outcome Assessment, Health Care; D010510:Periodontal Diseases / Q000628:therapy*; D011247:Pregnancy