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Nnebe-agumadu U, Okike O, Orji I, Ibekwe RC.Nnebe-agumadu U, et al. Among authors: ibekwe rc.Niger J Clin Pract. 2011 Apr-Jun;14(2):159-62. doi: 10.4103/1119-3077.84006.Niger J Clin Pract. 2011.PMID: 21860131