Sleep-disordered breathing in infants and children Neurocognitive correlates of childhood sleep breathing disorders Childhood narcolepsy Periodic limb movement disorder Parasomnias and other non-respiratory sleep disorder.

Society Memberships & Professional Activities:
Fellow of the Australasian College of Physicians, Member:, Australasian Sleep Association, American Academy of Sleep Medicine, Thoracic Society of Australia and New Zealand, China-Austalia Children's Collaborative Sleep Research Centre, NSW Health Dept SIDS Advisory Committee