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Representative Polaroid photograph showing an ethidium bromide stained gel of RT-PCR products of C1q, C1r, C1s, C2, C3, C4, C5, C6, C7, C8, and C9 mRNAs. The cDNA had been obtained from a total RNA extract of AD hippocampus. Electrophoretic separation was performed on a 6% polyacrylamide gel. Size markers are in lane M, with sizes shown in base pairs. See under Methods for details.
