Elzanfaly, E. S., M. Nebsen, and N. K. Ramadan,
"Development and validation of PCR, PLS and TLC densitometric methods for the simultaneous determination of vitamins B1, B6 and B12 in pharmaceutical formulations",
Pak. J. Pharm. Sci, vol. 23, no. 4, pp. 409–415, 2010.
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