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. 2002 May 9;71(1):174–179. doi: 10.1086/341284

Figure 1.

Figure 1

Pedigrees and segregation of IVS6+1G→T. Blackened symbols denote patients with bilateral retinoblastoma; half-blackened symbols denote patients with unilateral retinoblastoma. Plus signs (+) indicate presence of IVS6+1G; “mt” indicates presence of IVS6+1T; horizontal bar indicates individuals investigated by RNA analysis. A, Family G162. The frame encloses the branch of this family that has been described elsewhere (Czeizel and Gardonyi 1974). B, Family M12487. Individual II-2 died of retinoblastoma and may have had bilateral tumors (half-crosshatched, half-blackened symbol).