作者单位:Promega Corporation, 2800 Woods Hollow Road, Madison, WI 53711, United States[1]Promega Biosciences, 277 Granada Drive, San Luis Obisbo, CA 93401, United States[2]Top (Transgenic Operative Products) Srl, via Einstein, 26900 Lodi, Italy[3]Department of Pharmacological Sciences, University of Milan, Via Balzaretti 9, 20133 Milan, Italy[4]