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Luepker RV, Perry CL, McKinlay SM, Nader PR, Parcel GS, Stone EJ, Webber LS, Elder JP, Feldman HA, Johnson CC, et al.Luepker RV, et al. Among authors: webber ls.JAMA. 1996 Mar 13;275(10):768-76. doi: 10.1001/jama.1996.03530340032026.JAMA. 1996.PMID: 8598593Clinical Trial.