Micturition syncope and defecation syncope
Aug. 17, 2022
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From 1994 to 1997, 262,287 children in New York State had blood lead levels drawn within 2 weeks of their first or second birthday. This illustration shows the seasonal and trend components. (Source: Haley VB, Talbot TO. Seasonality and trend in blood lead levels of New York State children. BMC Pediatr 2004;4:8.)