<qa>  How many patients receive escalating doses of IDEC-152 monoclonalCohorts of 3-10 patients receive escalating doses of IDEC-152 monoclonal antibody until the maximum tolerated dose MTD is determined. The MTD is defined as the dose preceding that at which at least 2 of 3, 2 of 6, or 3 of 10 patients experience dose-limiting toxicity. 