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Restriction length polymorphisms of the Shigella fliC gene after HhaI digestion. Lane 1, F type P4; lane 2, F type P3; lane 3, F type P7; lane 4, F type P10; lane 5, F type P5; lane 6, F type P8; lane 7, F type P15; lane 8, F type P16; lane 9, F type P12; lane 10, F type P11; lane 11, F type P6. Arrows indicate internal marker fragments.
