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. Author manuscript; available in PMC: 2015 Apr 9.
Published in final edited form as: J Chromatogr B Analyt Technol Biomed Life Sci. 2013 Jul 4;934:16–21. doi: 10.1016/j.jchromb.2013.06.031

Fig. 1.

Fig. 1

Overlay of MRM transitions. Chromatograms showing chromatographic separation of testosterone, dihydrotestosterone, progesterone, cortisone, and cortisol spiked to 20 ng/mL each in steroid-free serum precipitated with IS methanol.