Task: Answer Verification
Input (English): Question: Do both host and graft vessels contribute to revascularization of xenografted human ovarian tissue in a murine model?
Answer: Host and graft vessels contributed sequentially to graft revascularization: murine angiogenesis initiated reperfusion from day 5 and, by day 10, human angiogenesis was shown to participate in graft revascularization. Host and graft angiogenesis are potential targets to reduce the avascular period after grafting.
Output (English): yes