title: Reply to Thomas.
authors.affiliation: New York University School of Medicine Dept. Environmental Medicine 550 First Avenue New York, NY 10016.
authors.forename: Naomi
authors.initials: N
authors.lastname: Harley
mesh_terms: D016902:Air Pollution, Indoor / Q000032:analysis*; D011834:Radiation Monitoring / Q000379:methods*; D011886:Radon / Q000032:analysis*
chemical_list: D011886:Radon