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Saini P, Abu-Izza K, Lu DR.Saini P, et al.J Chromatogr B Biomed Appl. 1995 Mar 10;665(1):155-61. doi: 10.1016/0378-4347(94)00512-4.J Chromatogr B Biomed Appl. 1995.PMID: 7795787