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Environment and Industry Research Unit, Biology and Biochemistry Department, North East London Polytechnic, Romford Road, Stratford, London E15 4LZ, U.K.
S. J. Wright
Affiliation:
Environment and Industry Research Unit, Biology and Biochemistry Department, North East London Polytechnic, Romford Road, Stratford, London E15 4LZ, U.K.
P. Birch
Affiliation:
Environment and Industry Research Unit, Biology and Biochemistry Department, North East London Polytechnic, Romford Road, Stratford, London E15 4LZ, U.K.
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