American Physical Therapy Association (APTA) Australian Physiotherapy Association Chartered Society of Physiotherapy /UK (CSP) Cochrane Database of Systematic Reviews (CDSR) Council for Professions Supplementary to Medicine/ UK (CPSM) DBC Active Spine Centre (Canossa Hospital) DBC International Limited Hong Kong Physiotherapy Association PEDro the Physiotherapy Evidence Database Physiobase.com Physio mailbase/UK Singapore Physiotherapy Association World Health Organisation