Susan R. Hintz, MD, M.S.Epi., Thomas Slovis, MD, Dorothy Bulas, MD, Krisa P. Van Meurs, MD, Rebecca Perritt, MS, David K. Stevenson, MD, W. Kenneth Poole, PhD, Abhik Das, PhD, and Rosemary D. Higgins, MD, for the NICHD Neonatal Research Network, Palo Alto, California, Detroit, Michigan, Washington, DC, Research Triangle Park, North Carolina, and Bethesda, Maryland

Changes in Myocardial Function and Hemodynamics after Ligation of the Ductus Arteriosus in Preterm Infants 597

Shahab Noori, MD, Philippe Friedlich, MD, MS Epi, Istvan Seri, MD, PhD, and Pierre Wong, MD, Los Angeles, California

50 Years Ago in The Journal of Pediatrics—Suicide in Children and Adolescents 602

Bonita Stanton, MD, Detroit, Michigan

Are Babies Born to Short, Primiparous, or Thin Mothers “Normally” or “Abnormally” Small? 603

Xun Zhang, PhD, Sven Cnattingius, MD, PhD, Robert W. Platt, PhD, K. S. Joseph, MD, PhD, and Michael S. Kramer, MD, Montreal, Quebec and Halifax, Nova Scotia, Canada, and Stockholm, Sweden

Sleep-Disordered Breathing and the Metabolic Syndrome in Overweight and Obese Children and Adolescents 608

S. L. Verhulst, MD, N. Schrauwen, D. Haentjens, MD, R. P. Rooman, MD, PhD, L. Van Gaal, MD, PhD, W. A. De Backer, MD, PhD, and K. N. Desager, MD, PhD, Wilrijk, Belgium

Homozygous Null Mutation of the Melanocortin-4 Receptor and Severe Early-Onset Obesity 613

Béatrice Dubern, MD, PhD, Selma Bisbis, PhD, Habiba Talbaoui, PhD, Johanne Le Beyec, PharmD, PhD, Patrick Tounian, MD, PhD, Jean-Marc Lacorte, MD, PhD, and Karine Clément, MD, PhD, Paris, France, and Rabat, Morocco

Definable Somatic Disorders in Overweight Children and Adolescents 618

Thomas Reinehr, MD, Anke Hinney, PhD, Gideon de Sousa, Frank Austrup, MD, Johannes Hebebrand, MD, and Werner Andler, MD, Datteln and Essen, Germany

The Effect of CYP2D6 Polymorphisms on the Response to Pain Treatment for Pediatric Sickle Cell Pain Crisis 623

David C. Brousseau, MD, MS, D. Gail McCarver, MD, Amy L. Drendel, DO, MS, Karthika Divakaran, MS, and Julie A. Panepinto, MD, MSPH, Milwaukee, Wisconsin

Assessment of Tetrahydrobiopterin (BH₄) Responsiveness in Phenylketonuria 627

Betina Fiege, MD, and Nenad Blau, PhD, Zurich, Switzerland

Nephropathy Advancing to End-Stage Renal Disease: A Novel Complication of Lysinuric Protein Intolerance 631

Laura M. Tanner, MD, Kirsti Näntör-Salonen, MD, PhD, Harri Niinikoski, MD, PhD, Timo Jahnukainen, MD, PhD, Päivi Keskinen, MD, PhD, Heikki Saha, MD, PhD, Kristiina Kananen, MD, PhD, Antero Helanterä, MD, Martti Metso, MD, Marjatta Linnanvuo, MD, Kirsi Huoponen, PhD, and Olli Simell, MD, PhD, Turku, Tampere, Kajaani, Lahti, Hämeenlinna, and Oulu, Finland

Self-Hypnosis Training for Headaches in Children and Adolescents 635

Daniel P. Kohen, MD, and Robert Zajac, MD, Minneapolis and Glencoe, Minnesota

50 Years Ago in The Journal of Pediatrics—The Chloride Concentration of Salivia and Sweat in Infancy 639

Drucy Borowitz, MD, Buffalo, New York

Prevalence of Hypertension and Pre-Hypertension among Adolescents 640

Karen L. McNiece, MD, Timothy S. Poffenbarger, Jennifer L. Turner, Kathy D. Franco, BSN, Jonathan M. Sorof, MD, and Ronald J. Portman, MD, Houston, Texas

50 Years Ago in The Journal of Pediatrics—Enterobiasis in Children: The Use of Zinc Oxide Ointment Locally as a Therapeutic Agent 644

Sarah S. Long, MD, Philadelphia, Pennsylvania

Who Claims to Be a Pediatrician? 645

Gary L. Freed, MD, MPH, Rebecca L. Uren, MHSA, Ericka J. Hudson, MHSA, Indu Lakhani, MBA, MS, and the Research Advisory Committee of The American Board of Pediatrics, Chapel Hill, North Carolina

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Clinical and Laboratory Observations

Unexplained Neonatal Respiratory Distress Due to Congenital Surfactant Deficiency 649

Marco Somaschini, MD, Lawrence M. Nogee, MD, Isabella Sassi, MD, Olivier Danhaive, MD, Silvia Presi, PhD, Renata Boldrini, MD, Cristina Montrasio, PhD, Maurizio Ferrari, MD, Susan E. Wert, PhD, and Paola Carrera, PhD, Seriate, Milan, and Rome, Italy, Baltimore, Maryland, and Cincinnati, Ohio

Treatment of Chronic Fatigue and Orthostatic Intolerance with Propranolol 654

Vegard Bruun Wyller, MD, Erik Thaulow, MD, PhD, and Jan P. Amlie, MD, PhD, Oslo, Norway

Chronic Lung Disease and Cystic Fibrosis Phenotype in Prolidase Deficiency: A Newly Recognized Association 656

A. S. Luder, MBBS, H. Mandel, MD, M. Khayat, PhD, I. Gurevich, MSc, P. Frankel, MSc, J. Rivlin, MD, and T. C. Falik-Zaccai, MD, Safed, Haifa, and Naharriya, Israel

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Insights

Virtual Cardioscopy in Cor Triatria 659

Shyh-Jye Chen, MD, PhD, Taipei, Taiwan

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Letters

The following section is available in the online version of The Journal.

Early Prediction of Poor Outcome in Extremely Low Birth Weight Infants by Classification Tree Analysis e88

Antonio Marini, MD, Milano, Italy

Reply e88

N. Ambalavanan, MBBS, MD, W. A. Carlo, MD, A. Baibergenova, PhD, K. E. Thorpe, M. MATH, S. Saigal, MD, and B. Schmidt, PhD, Birmingham, Alabama, and Hamilton, Ontario, Canada

Multicenter Biliary Atresia Outcome Studies: The Importance of Surgical Aspects e89

Claus Petersen, MD, Benno M. Ure, MD, and M. Davenport, ChM, FRCS, Hannover, Germany, and Denmark Hill, London, England, United Kingdom

Reply e89

Benjamin L. Shneider, MD, Jorge A. Bezerra, MD, Ronald J. Sokol, and Peter F. Whitington, New York, New York, Cincinnati, Ohio, Denver, Colorado, and Chicago, Illinois

Transfusion Thresholds for Preterm Infants e90

Michael P. Meyer, MBChB, MRCP, FRACP, MD, Auckland, New Zealand

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