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Drs. Blanco and Husain are from Columbia University Medical Center, New York, New York. Dr. Blanco also is from Douglaston Dermatology, New York. Ms. Lal is from New York Institute of Technology College of Osteopathic Medicine, Old Westbury. The authors report no conflict of interest. Correspondence: Fiona P. Blanco, MD, Douglaston Dermatology, 6040 Marathon Pkwy, Douglaston, NY 11362 (fionabla...

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An insect grwoth regulator (IGR), Thompson-Hayward TH 6040 (N-(4-chlorophenyl)-N'-(2,6-difluorobenzoyl)urea), incorporated in the feed of rhinoceroses at rates of 1 and 0.1 mg/kg inhibited development of Musca domestica L. and Stomoxys calcitrans (L.) in the feces.

Fan-Chi Lin1, Michael H. Ritzwoller1, John Townend2, Stephen Bannister3 and Martha K. Savage2 1Center for Imaging the Earth’s Interior, Department of Physics, University of Colorado at Boulder, Boulder, CO 80309-0390, USA. E-mail: [email protected] 2Institute of Geophysics, School of Geography, Environment, and Earth Sciences, Victoria University of Wellington, PO Box 600, Wellington 6040,...