{TAIL ~ A method} 1, which comprises detecting enhanced aggregation of {HEAD ~ the platelets} in the presence of a multivalent ion 
{ TAIL ~ A method } 1 , which comprises detecting enhanced aggregation of { HEAD ~ the platelets } in the presence of a multivalent ion
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH