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EI mass spectra of the dihydrodiol trimethylsilyl ethers: naphthalene cis-dihydrodiol (A), phenanthrene cis-dihydrodiol (B), anthracene cis-dihydrodiol (C), fluoranthene cis-dihydrodiol (D), pyrene cis-dihydrodiol (E), and benz[a]anthracene cis-dihydrodiol (F).
