Pediatricians, neurodevelopmental pediatricians, and neonatologists make up the regular staff of the clinic, and many clinics include neuropsychologists and physical, occupational, and/or speech and language therapists. In addition, some infants may need referrals to audiologists, ophthalmologists, neuropsychologists, social workers, respiratory therapists, nutritionists, gastroenterologists, orthopedic surgeons, or other subspecialists.