Provides listing of clinical trials including Angelman syndrome; anxiety in children; argininosuccinic aciduria; arginase; auditory brinstem implants in children and adolescents, biotinidase deficiency in children and adolescents, brain injuries in children; cerebral palsy; continuous positive airway pressure (CPAP); celiac disease in children; childhood absence epilepsy; childhood absence epilepsy initial treatment; childhood hearing loss; childhood adolescent miagraine prevention study (CHAMP); children and adolescents with MPS I; children with Tourette syndrome; postural orthostatic tachycardia syndrome (POTS); 22q11.2 deletion syndrome; hearing aids in children, migraine in children; positive airway pressure (PAP) in children; vilazodone in adolescents; levomilnacipran in adolescents; preterm infants; attention deficit hyperactivity disorder (ADHD); BH4/tetrahydrobiopterin; Charcot-Marie-Tooth; children with asthma; congenital hypothyroidism; Duchenne muscular dystrohies (DMD); Fabray; intellectual disabilities; myotonic type 1; neurofibromatosis (NF1); Pompe disease; and short-chain acyl-CoA dehydrogenase deficiency (SCHAD); tracheostomies; hyperphagia in Prader-Wili; XXY (Klinefelter); GERD; TBI; substance abuse; cochlear implants; congenital adrenal hyperplasia; congenital heart disease; cystic fibrosis; depression; MOMS trial for NTD; e-cigarettes; epilepsy; FASD; foster care; fragile X; headache; social determinants of health; infantile spasms; inflammatory bowel disease; ketogenic diet; LCHAD/TFP deficiency; leukodystrophy; MCADD; malonic aciduria; maple syrup urine disease; maternal depression; methylmalonic acidemia; ARPKD/CHF; open/aftercare treatment for participants diagnosed with obsessive-complusive disorder; osteogenesis imperfecta; osteoporosis; otitis media with effusion; PaP; PKU; patient-specific, effective, and rational functional connnectivity trgeting for DBS in OCD; constipation; obesity; Prader-Willi syndrome; predicting treatment response in patients wtih OCD; propionic acidemia; reclaim deep brain stimulation (DBS) therapy for obsessive-compulsive disorder; Rett syndrome; seizures; SCID: sickle cell disease; smoking cessation; somatic symptom and related disorders; spina bifida; spinal cord injuries; spinal muscular atrophy; autism; complementary and alternative medicine; glactosemia; integrative health; pyruvate decarboxylase deficiency; syncope; thin film spectacle coatings to reduce light sensitivity and headaches in child and adolescent patients with migraine; transgender youth; treatment of CMV-related hearing loss; tuberous sclerosis; turner syndrome; type 1 diabetes; tyrosinemia type 1; understanding how ketamine brings about rapid improvement in OCD; very long chain acyl-CoA dehydrogenase deficiency (VLCADD); and others. Type in the term on the home page under "Find a study."