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Valletta MJ, Schwartz EL, Tozzoli D.Valletta MJ, et al. Among authors: schwartz el.Clin Podiatr Med Surg. 1989 Apr;6(2):365-71.Clin Podiatr Med Surg. 1989.PMID: 2650847Review.
Schwartz E, Warren RF, O'Brien SJ, Fronek J.Schwartz E, et al.Orthop Clin North Am. 1987 Jul;18(3):409-19.Orthop Clin North Am. 1987.PMID: 3327030Review.
Lalezari I, Schwartz EL.Lalezari I, et al. Among authors: schwartz el.J Med Chem. 1988 Jul;31(7):1427-9. doi: 10.1021/jm00402a030.J Med Chem. 1988.PMID: 3164410