title: Response to letter to the editor regarding "Serum perfluoroalkyl acids and time to pregnancy in nulliparous women".
authors.affiliation: Perinatal Epidemiology Research Unit, Aarhus University Hospital, 8200 Aarhus N, Denmark; Horsens Regional Hospital, 8700 Horsens, Denmark. Electronic address: ccbach@clin.au.dk.
authors.forename: Cathrine Carlsen
authors.initials: CC
authors.lastname: Bach
authors.affiliation: Section for Epidemiology, Department of Public Health, Aarhus University, 8000 Aarhus C, Denmark.
authors.forename: Bodil Hammer
authors.initials: BH
authors.lastname: Bech
authors.affiliation: Research Unit for Gynaecology and Obstetrics, Institute of Clinical Research, University of Southern Denmark, 5000 Odense C, Denmark.
authors.forename: Ellen Aagaard
authors.initials: EA
authors.lastname: Nohr
authors.affiliation: Section for Epidemiology, Department of Public Health, Aarhus University, 8000 Aarhus C, Denmark; Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA 90095-1772, USA.
authors.forename: Jørn
authors.initials: J
authors.lastname: Olsen
authors.affiliation: Department of Pediatrics, Aarhus University Hospital, 8200 Aarhus N, Denmark.
authors.forename: Niels Bjerregård
authors.initials: NB
authors.lastname: Matthiesen
authors.affiliation: Department of Environmental Science, Aarhus University, 4000 Roskilde, Denmark.
authors.forename: Rossana
authors.initials: R
authors.lastname: Bossi
authors.affiliation: Department of Obstetrics and Gynecology, Aarhus University Hospital, 8200 Aarhus N, Denmark.
authors.forename: Niels
authors.initials: N
authors.lastname: Uldbjerg
authors.affiliation: Centre for Arctic Health & Unit for Cellular and Molecular Toxicology, Department of Public Health, Aarhus University, 8000 Aarhus C, Denmark.
authors.forename: Eva Cecilie
authors.initials: EC
authors.lastname: Bonefeld-Jørgensen
authors.affiliation: Perinatal Epidemiology Research Unit, Aarhus University Hospital, 8200 Aarhus N, Denmark; Department of Pediatrics, Aarhus University Hospital, 8200 Aarhus N, Denmark.
authors.forename: Tine Brink
authors.initials: TB
authors.lastname: Henriksen
mesh_terms: D017738:Alkanesulfonic Acids / Q000097:blood*; D002210:Caprylates / Q000097:blood*; D005260:Female; D005466:Fluorocarbons / Q000097:blood*; D006801:Humans; D007247:Infertility, Female; D011247:Pregnancy; D061685:Time-to-Pregnancy
chemical_list: D017738:Alkanesulfonic Acids; D002210:Caprylates; D005466:Fluorocarbons