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1. The total hydroxyproline: creatinine ratios in random urines collected every 3 months for 1 year from twenty-six adolescent boys (11-14 years) have been compared with the observed height and weight velocities of the boys during that year. 2. There were significant correlations of both height and weight velocities over 6 and 12 month periods with the ratios in the random urines collected duri...

Pan African Medical Journal. 2012; 12:26 This article is available online at: http://www.panafrican-med-journal.com/content/article/12/26/full/ © Illias Tazi et al. The Pan African Medical Journal ISSN 1937-8688. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, dis...