HI mumtaz,
My son was diagnosed as thal major just two months back. I myself am in search for the perfect place for my son. I will be taking him to dammam central hospital this weekend as I heard there is a hemetologist paediatric there who is also a thal speciallist. I only found out yesterday that they have started seeing non-saudis also. I will definitely enquire if he knows of any place in Riyadh. Hopefully he is not on vaccation.
regards,
maha