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2. ? (1989) Additional electrophoretic components of cholinesterase in plasma: a phenomenon of no importance to the total plasma cholinesterase activity. J Clin Chem Clin Biochem 27:429?431
3. ? (1990) Immunoreactive plasma cholinesterase (EC 3.1.1.8) substance concentration, compared with cholinesterase activity concentration and albumin: Inter- and intra-individual variations in a healthy population group. J Clin Chem Clin Biochem 28:851?856
4. ? (1991) Inter and intraindividual variations in plasma cholinesterase activity and substance concentration in employees of an organophosphorus insecticide factory. Brit J Indust Med 48:562?567
5. Brock A, Brock V (1990) Plasma cholinesterase activity in a healthy population group without occupational exposure to known cholinesterase inhibitors: Relative influence of some factors related to normal inter- and intra-individual variations. Scand J Lab Clin Invest 50:401?408