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O'Neal, R., Johnson, O. & Schaefer, A. Guidelines for Classification and Interpretation of Group Blood and Urine Data Collected as Part of the National Nutrition Survey. Pediatr Res 4, 103–106 (1970). https://doi.org/10.1203/00006450-197001000-00013
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DOI: https://doi.org/10.1203/00006450-197001000-00013
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