[1
]Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin,
Milwaukee WI 53226, USA.
[2
]Computational Chemistry and Biology, Global Research & Development, Discovery
Technologies, Merck Healthcare, Frankfurter Str. 250, 64293 Darmstadt, Germany.
[3
]Department of Pharmacology, University of Minnesota Medical School, 312 Church Street,
Minneapolis, MN 55455, USA.
[4
]Central Process Development - Downstream Processing Services, Merck Performance Materials,
Frankfurter Street 250, 64293 Darmstadt, Germany.
[5
]Global Health Institute of Merck, Ares Trading S.A., a subsidiary of Merck KGaA, Darmstadt,
Germany, 1262 Eysins, Switzerland.