Missed Appointments at a Child Development Centre and Barriers to Access Special Needs Services for Children in Klang Valley, Malaysia: A Mixed Methods Study. - Fadzil F; Idris IB; Kamal Nor N; Ismail J; Mohd Tamil A; Mohamad Noh K; Khamis N; Ahmad NA; Othman S; Ismail R (International journal of environmental research and public health, 2021)