31. In children with retinoblastoma , retinal cell division becomes unchecked, causing the growth of tumors. 32. retinoblastoma screening using the red reflex.33. It binds directly, with several other proteins, to retinoblastoma protein which regulates cell proliferation. 34. Up to 5 % of patients with hereditary retinoblastoma are at risk of developing trilateral retinoblastoma. 35. Up to 5 % of patients with hereditary retinoblastoma are at risk of developing trilateral retinoblastoma . 36. It is found among several cellular proteins that bind directly to retinoblastoma protein to regulate cell proliferation. 37. It is found among several proteins that binds directly to retinoblastoma protein, which regulates cell proliferation. 38. It is found among several proteins that bind directly to retinoblastoma protein, which regulates cell proliferation. 39. The encoded protein interacts preferentially with the underphosphorylated retinoblastoma protein via the E1A-binding pocket B. 40. Much of his early research concerned ocular pathologic findings in retinoblastoma and laser effects on the retina.