Regarding retinoblastoma which of the following statements is correct?

1.	Regarding retinoblastoma which of the following statements is correct?
A.	Bilateral involvement is found in 70% of cases.
B.	The predisposition may be inherited as an autosomal dominant condition.
C.	There is an increased risk of autoimmune disease.
D.	They have often metastasised by the time of diagnosis.
E.	They usually present with leukocoria.
Answer» F.

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Regarding retinoblastoma which of the following statements is correct?

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