title: A SPECIAL MEETING REVIEW EDITION: Clinical Research Highlights in IBD: Diagnosis and Anti-Tumor Necrosis Factor Monitoring: Digestive Disease Week 2013May 18-21, 2013 • Orlando, FloridaSpecial Reporting on:• Serological and Inflammatory IBD Marker Prevalence As Function of Age in a Large Cohort of Patients Presenting IBD-Like Gastrointestinal Symptoms• Prevalence of Antibodies to Adalimumab (ATA) and Correlation Between ATA and Low Serum Drug Concentration on CRP and Clinical Symptoms in a Prospective Sample of IBD Patients• Serum Adalimumab Levels and Antibodies Correlate with Endoscopic Intestinal Inflammation and Inflammatory Markers in Patients with Inflammatory Bowel Disease• Comparison of Early Measurement of Infliximab and Antibodies-to-Infliximab Serum Levels with Standard Trough Analysis• Trough Levels and Antidrug Antibodies Predict Safety and Success of Restarting Infliximab After a Long Drug Holiday• A Multi-Center Observational Study in Community Gastroenterology Practices Evaluating the Clinical Usage of Testing for Serum Levels of Infliximab and Antibodies to Infliximab• Preoperative Serum Biologic Levels Do Not Impact Postoperative Outcomes in Ulcerative Colitis• Higher Preoperative Serum Biologic Levels Are Associated with Postoperative Complications in Crohn's Disease PatientsWith Expert Commentary by: William J. Sandborn, MDProfessor and Chief, Division of GastroenterologyDirector, UCSD IBD CenterUC San Diego Health SystemLa Jolla, California.