Parikh SN, Crawford AH, Do TT, Roy DR (2004). "Popliteal pterygium syndrome: implications for orthopaedic management". Journal of pediatric orthopaedics. Part B / European Paediatric Orthopaedic Society, Pediatric Orthopaedic Society of North America ۱۳ (۳): ۱۹۷–۲۰۱. PMID 15083121