Burton T^1,2, Howe-Patterson M², Ramchandani S², Ozolins TRS¹. ¹Queen's University, Kingston, ON, Canada, ²Analytics for Life, Kingston, ON, Canada.

Lovely CB, Norrie JL, Henegar T, Swartz ME, Eberhart JK. University of Texas at Austin, Austin, TX, United States.

El Husseini N, Hales B. McGill University, Montréal, QC, Canada.

Li Q¹, Kappil M¹, Li A², Dassanayke PS², Darrah T³, Friedman AE⁴, Friedman M⁴, Lambertini L¹, Landrigan P¹, Stodgell CJ⁴, Aagaard K⁵, Schadt E¹, Murray J⁶, Clark EB⁷, Dole N⁸, Culhane J⁹, Swanson J¹⁰, Varner M⁷, Moye J¹¹, Kasten C¹², Miller RK⁴, Chen J¹, National Children’s Study Consortium¹¹. ¹Ichan School of Medicine, Mt. Sinai, New York, NY, United States, ²University of Illinois, Chicago, Chicago, IL, United States, ³Ohio State University, Columbus, OH, United States, ⁴University of Rochester School of Medicine and Dentistry, Rochester, NY, United States, ⁵Baylor School of Medicine, Houston, TX, United States, ⁶University of Iowa, Iowa City, IA, United States, ⁷University of Utah, Salt Lake City, UT, United States, ⁸University of North Carolina, Chapel Hill, NC, United States, ⁹The Children’s Hospital of Philadelphia, Philadelphia, PA, United States, ¹⁰University of California, Irvine, Irvine, CA, United States, ¹¹National Institutes of Health, Bethesda, MD, United States, ¹²US Food and Drug Administration, Silver Spring, MD, United States.

Koleva PT¹, Kim JS², Guttman DS³, Sears MR⁴, Becker AB⁵, Mandhane PJ¹, Subbarao P⁶, Turvey SE⁷, Scott JA², Kozyrskyj AL¹, Investigators CHILD Study⁸. ¹Department of Pediatrics, University of Alberta, Edmonton, AB, Canada, ²Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada, ³Cell and Systems Biology, University of Toronto, Toronto, ON, Canada, ⁴Department of Medicine, McMaster University, Hamilton, ON, Canada, ⁵Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, MB, Canada, ⁶Department of Pediatrics, University of Toronto, Toronto, ON, Canada, ⁷Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada, ⁸Canadian Healthy Infant Longitudinal Development Study, Hamilton, ON, Canada.

Tucker D^1,2, Chappell V², Rodriguez K³, Yao H³, Fenton S². ¹University of North Carolina at Chapel Hill, Chapel Hill, NC, United States, ²Division of NTP, NTPL, NIEHS, Research Triangle Park, NC, United States, ³Laboratory of Reproductive and Developmental Toxicology, DIR, NIEHS, Research Triangle Park, NC, United States.

Drake D¹, Shapiro AM¹, Wells PG^1,2. ¹Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada, ²Department. of Pharmacology and Toxicology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada.

Nicole C. Kleinstreuer, ILS/NICEATM

Pei L¹, Li Z², Ye R², Liu J², Ren A². ¹Institute of Population Research, Peking University, Beijing, China, ²Institute of Reproductive and Child Health, Ministry of Health Key Laboratory of Reproductive Health, Peking University, Beijing, China.

Wertelecki W^1,4, Yevtushok L², Korblein A¹, Zymak-Zakutnia N³, Komov O⁵, Kuznietsov I⁶, Lapchenko S¹, Sosyniuk Z². ¹OMNI-Net for Children, Ukraine, Rivne, Ukraine, ²Rivne Province Regional Medical Diagnostic Center, Rivne, Ukraine, ³Khmelnytsky City Perinatal Center, Khmelnytsky, Ukraine, ⁴OMNInet–Medword LLC, Mobile, AL, United States, ⁵Rivne Province State Sanitary and Epidemiologic Service, Rivne, Ukraine, ⁶Human and Animal Physiology Department, Eastern-European University, Lutsk, Volyn, Ukraine.

Padula AM¹, Yang W¹, Carmichael SL¹, Tager IB², Lurmann F³, Hammond SK², Shaw GM¹. ¹Stanford University, Stanford, CA, United States, ²University of California, Berkeley, Berkeley, CA, United States, ³Sonoma Technology, Inc., Petaluma, CA, United States.

Effects of Maternal Periconceptional Sleep Quality on Risk of Neural Tube Defects

Li Z¹, Raynes-Greenow C², Ren A¹. ¹Institute of Reproductive and Child Health, Ministry of Health Key Laboratory of Reproductive Health, Peking University, Beijing, China, ²Sydney School of Public Health, Sydney Medical School, The University of Sydney, Sydney, Australia.

Kobus Bianchini K¹, Bourckhardt GF², Nazari EM², Müller YMR². ¹Universidade do Estado de Santa Catarina (UDESC), Florianópolis, SC, Brazil, ²Universidade Federal de Santa Catarina (UFSC), Florianópolis, SC, Brazil.

Ren AG^1,2, Yi DQ¹, Wang CY¹, Wang LL^1,2, Jin L^1,2, Liu JF^1,2, Zhang YL^1,2. ¹Institute of Reproductive and Child Health, Peking University, Beijing, China, ²Key Laboratory of Reproductive Health, Ministry of Health, Beijing, China.

Lambertini L¹, Nomura Y^2,1, Chen J¹. ¹Icahn School of Medicine at Mount Sinai, New York, NY, United States, ²Queens College, CUNY, Flushing, NY, United States.

Rosenthal J¹, Ramirez N², Lopez-Palacios E³, Sniezek J¹, Vellozzi C¹. ¹Centers for Disease Control and Prevention, Atlanta, GA, United States, ²Ministry of Health, Guatemala City, Guatemala, ³World Food Program, Guatemala City, Guatemala.

Sekkarie A¹, Zaganjor I¹, Tsang BL¹, Cannon M¹, Sniezek J¹, Mulinare J², Williams J¹, Razzaghi H², Rosenthal J¹. ¹NCBDDD, CDC, Atlanta, GA, United States, ²Carter Consulting, Inc, Atlanta, GA, United States.