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. Author manuscript; available in PMC: 2013 Nov 1.
Published in final edited form as: J Chromatogr B Analyt Technol Biomed Life Sci. 2012 Oct 3;908:76–86. doi: 10.1016/j.jchromb.2012.09.014

Fig. 1.

Fig. 1

Chemical structure, formula and molecular mass of rapamycin and erythromycin.