International Partnership for Microbicides, , Silver Spring, Maryland, USA; Huntingdon Life 6 Sciences, Huntingdon Research Centre, Huntingdon, Cambridgeshire, UK; ABL B.V., Assen, The 7 Netherlands; University of Pittsburgh, Magee Womens Research Institute, Pittsburgh, PA,USA. 8 9 Running Head: Sheep model of microbicide safety and pharmacokinetics 10 11 # Address correspondence to Jonathon D....