Los Angeles (Embargoed until March 17, 2002, 1pm, EST) Aggressive ovarian cancer may be linked to the presence of thrombocytosis, a blood disorder characterized by high platelet cell counts, report ...

Platelets (also called thrombocytes) are small blood cell fragments made by your bone marrow. They help form blood clots to stop you from bleeding when you've been injured. Platelets are small cell ...