Seattle Children's - Do you have Mr. Yuk in your home? The Mr. Yuk symbol was developed in 1971 by the Pittsburgh Poison Center of Children's Hospital. The Washington Poison Center, which
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![Mr. Yuk in 3D: Pittsburgh's green guy, at 52, is still spreading the Poison Center's message | Pittsburgh Post-Gazette Mr. Yuk in 3D: Pittsburgh's green guy, at 52, is still spreading the Poison Center's message | Pittsburgh Post-Gazette](https://9b16f79ca967fd0708d1-2713572fef44aa49ec323e813b06d2d9.ssl.cf2.rackcdn.com/600x_a4-3_cTC/20230717tsmryuck-8-1690576319.jpg)