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Louis ON, Sankar P, Ubel PA.Louis ON, et al. Among authors: ubel pa.J Gen Intern Med. 1997 Aug;12(8):478-84. doi: 10.1046/j.1525-1497.1997.00086.x.J Gen Intern Med. 1997.PMID: 9276653Free PMC article.
Silver-Isenstadt A, Ubel PA.Silver-Isenstadt A, et al. Among authors: ubel pa.J Gen Intern Med. 1999 Aug;14(8):481-7. doi: 10.1046/j.1525-1497.1999.09298.x.J Gen Intern Med. 1999.PMID: 10491232Free PMC article.
Silver-Isenstadt A, Ubel PA.Silver-Isenstadt A, et al. Among authors: ubel pa.J Gen Intern Med. 1997 Nov;12(11):669-71. doi: 10.1046/j.1525-1497.1997.07138.x.J Gen Intern Med. 1997.PMID: 9383134Free PMC article.