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Adam MP, Feldman J, Mirzaa GM, et al., editors. GeneReviews® [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2024.

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Figure 2.

Figure 2.

Typical facial features seen in a boy age eight years of northern European background (A) and a Hispanic girl age ~11 years (B) with Costello syndrome

Reprinted with permission from Gripp & Lin [2012]

From: HRAS-Related Costello Syndrome

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