Company Amplification of<i>est</i><i>α</i><i>2</i>/<i>est</i><i>β</i><i>2</i>and Correlation Between Esterase Gene Copy Number and Resistance to Insecticides in the Field<i>Culex pipiens pallens</i>Strains Collected From Beijing, ChinaChun X. Li, Tong Zhao, Yan D. Dong et al.|Journal of Medical Entomology|2009Cited by 8