3D Video Use in Laparoscopic Training A Placebo-controlled study of Maralixibat in Subjects with Progressive Familial Intrahepatic Cholestasis (MARCH-PFIC) ABC-CT (Autism Biomarkers Consortium for Clinical Trials) Abiraterone Acetate in Children with Classic 21-Hydroxylase Deficiency AD Biomarkers Study Adrenas CAH (Congenital Adrenal Hyperplasia) Study All of Us An Addiction-Based Mobile Health Weight Loss Intervention With Coaching Best Starts in CAH (Congenital Adrenal Hyperplasia) Bioflex Sensor Biomedical and Behavioral Infant Screening Brain and Behavior (CAR T Cell Treatment & Acute Lymphoblastic Leukemia Group) Brain Blood Flow Brain Injury after Brain Tumor Treatment Breast milk, infant microbiome and responses to oral rotavirus vaccine in multiple geographic locations Burosumab CAPE Cerebrospinal Fluid (CSF) Microbiota Cerebrovascular Impact of Acquired Anemias Cerebrovascular Integrity in Fontan Patients Cerebrovascular Reserve Study CeVD Study Concussion Study COVID Brain Fog Study CP bone CTC CTLA (Abatacept) Prevention (TN18) CureGN (Glomerulonephropathy) Denosumab treatment for glucocorticoid-induced osteoporosis. Diurnal Study DIVINCI - Influenza Infant Immunity DSRD Clinical Trial Dupilumab (Dupixent) for severe eczema in infants Dupilumab (Dupixent) for skin infection in eczema Effects of Androgen Excess on Lipid Distribution in Congenital Adrenal Hyperplasia Effects of ApoE4 on the Preterm Brain Extubation failure in newborn infants Fecal Microbiota Transplantation (FMT) in Crohn's disease Fecal Microbiota Transplantation (FMT) in Ulcerative Colitis Fetal Substudy (Congenital Heart Disease & Control) Fontan Non-Newtonian Behavior Food Choices in Type 2 Diabetes Food Choices in Type I Diabetes Genetics of Autism and other Neurodevelopmental Disorders (NDDs) Gut microbiome and response to oral typhoid vaccine H.E.A.R.T.S. (Household Exposure and Respiratory Virus Transmission and Immunity Study) HBCD (HEALthy Brain and Child Development) Headache After Lumbar Puncture Study Healthy Controls: Sports Assessment Study Healthy Development Healthy Eating through Reduction Of Excess Sugar (HEROES) Study HIGH DOSE ERYTHROPOIETIN FOR ASPHYXIA AND ENCEPHALOPATHY (HEAL) Hybrid Closed Loop (HYCLO) Hydroxychloroquine (HCQ) Prevention (TN22) Impact of the Pandemic on Families ImproveCareNow (ICN) Incyte INCB018424 Cream Infant-Robot Interaction-CHLA Influenza Breastfeeding Study INSPPIRE 2 (International Study Group of Pediatric Pancreatitis: In search for a cure) JASPER Early Intervention for Tuberous Sclerosis (JETS) LifeSkills Mobile Longitudinal EEG and Sensors Study MAMITA (Mejorando la Alimentación de la Madre y su Infante a Travez de la Reducción del Azúcar) Study MEDI8897 RSV (Monoclonal Antibody With an Extended Half-life Against Respiratory Syncytial Virus) Mother's Milk Study MR Imaging of Perinatal Brain Injury MRI of Congenital Adrenal Hyperplasia (CAH) Youth MRI of placental function Natural History Study of Congenital Adrenal Hyperplasia (CAH) from Infancy NEAT (Neuroimaging: Emotions and Appetite Testing) Study NEPTUNE (Nephrotic Syndrome Study Network) Neurocrine Ped Study Ophthalmologic disorders and eye tracking in children with autism spectrum disorder (ASD) Pathway to Prevention Perceptions of Long Acting Reversible Contraception (LARC) among Adolescent and Young Adults wth chronic illness Phase I Temsirolimus Postoperative Opioids in Children Prader-Willi Syndrome (PWS) Pragmatic Pediatric Trial of Balanced vs. Normal Saline Fluid in Sepsis (PRoMPT BOLUS) Predicting the early childhood outcomes of preterm brain shape abnormalities ProMetic BioTherapeutics Immune Globulin Intravenous (PBT IVIG Protocol 2004C009G) PRONTO-Peds Pyeloplasty Database Remodulin for the treatment of Persistent Pulmonary Hypertension of the Newborn (PPHN) Safety and Efficacy of Crinecerfont (NBI-74788) in Adult Subjects with Classic Congenital Adrenal Hyperplasia Safety of UCB-MNC Delivered into the Myocardium in HLHS Subjects SMART (Sequential Multiple Assignment Randomized Trial) Study Spruce Adult Study Study of Autism Risk in Siblings (StARS) SuperHEROES Surgical Decision Making for Children (SDM) in Neuromuscular Scoliosis (NMS) Sweet PEA Study Team Clinic Telehealth Study Tenofovir Alafenamide (TAF) in Adolescents with Chronic Hepatitis B Virus Infection (GS-US-320-1092) Therapeutic Advances in Childhood Leukemia and Lymphoma Consortium (TACL) / Amgen Carfilzomib study Therapeutic Advances in Childhood Leukemia and Lymphoma Consortium (TACL) Decitabine + Vorinostat Epigenetic study in AML Therapeutic Advances in Childhood Leukemia and Lymphoma Consortium (TACL) Marqibo® ALL study Time-Limited Eating in Adolescents (Time LEAd): a Pilot Study Today Study Intervention Tofacitinib in Children with Ulcerative Colitis (Pfizer OVATION Protocol A3921210) Tumor Registry UCART19-Paediatric Acute Lymphoblastic Leukaemia (PALL) Study Vascular Function in Children Xeltis Bioabsorbable Pulmonary Valved Conduit Early Feasibility Study