<qa>  How many patients receive escalating doses of MDX-060 monoclonCohorts of 3-6 patients receive escalating doses of MDX-060 monoclonal antibody until the maximum tolerated dose MTD is determined. The MTD is defined as the dose preceding that at which 2 of 3 or 2 of 6 patients experience dose-limiting toxicity. Once the MTD is determined, an additional 16 patients are accrued and receive MDX-060 monoclonal antibody at the MTD. 