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  • 131January 31 — Groundhog Day Blizzard Satellite image of the storm on the evening of February 1 over the American Midwest. Storm type: Winter storm, Blizzard, Ice storm, Tornadoes, Thundersnow …

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  • 132Poliomyelitis — Polio redirects here. For the virus, see Poliovirus. Not to be confused with poliosis, a condition of the hair being or becoming white or grey. Poliomyelitis Classification and external resources A man with an atrophie …

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