microscopic view of a mast cell found in connective tissue that contains numerous basophilic granules and releases substances such as heparin and histamine in response to injury. - 血液學 幅插畫檔、美工圖案、卡通及圖標
blood donation related line style banner design for web page, headline, brochure, annual report and book cover - 血液學 幅插畫檔、美工圖案、卡通及圖標
blood donation related vector thin line icons. outline symbol collection - 血液學 幅插畫檔、美工圖案、卡通及圖標圖示, 針筒, 健保和醫療