The very dense granule in rabbit platelets.
D000818:Animals; D001792:Blood Platelets / Q000166:cytology*; D003594:Cytoplasmic Granules; D006651:Histocytochemistry; D006652:Histological Techniques; D008854:Microscopy, Electron; D009992:Osmium; D011817:Rabbits; D012701:Serotonin / Q000032:analysis*
D009992:Osmium; D012701:Serotonin