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COOPER JF, IMFELD H.COOPER JF, et al.Trans West Sect Am Urol Assoc. 1958;25:153-61.Trans West Sect Am Urol Assoc. 1958.PMID: 13603579No abstract available.
Ban RW, Cooper JF, Imfeld H, Foti A.Ban RW, et al. Among authors: cooper jf.Invest Urol. 1974 Jan;11(4):308-11.Invest Urol. 1974.PMID: 4129202No abstract available.