41. (Bevacizumab-Related Exclusion) Current or recent (within 10 days of study enrolment) use of aspirin (> 325 mg/day), clopidogrel (> 75 mg/day), or current or recent (within 10 days prior to first dose of bevacizumab) use of therapeutic oral or parenteral anticoagulants or thrombolytic agents for therapeutic purposes Note: The use of full-dose oral or parenteral anticoagulants is NOT permitted for at least two weeks at the time of study enrollment. Prophylactic use of anticoagulants is NOT allowed.