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Biochemical and Biophysical Research Communications|September 16, 1991
Separation of Escherichia coli RNA polymerase sigma-70 holoenzyme from core enzyme on heparin-Sepharose columnsS R Wellington, G B Spiegelman
The Cochrane Database of Systematic Reviews|October 30, 2003
Inspiratory muscle training for asthmaF S F Ram, S R Wellington, N C Barnes
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