An independent variable is the variable that the scientist changes,  and the dependent variables are the variables that the scientist  doesn't control.
Glycoprotein VI (platelet) also known as GPVI is a glycoprotein receptor for collagen which is expressed in platelets. In humans, glycoprotein VI is encoded by the GPVI gene.
Glycoprotein IIb/IIIa. From Wikipedia, the free encyclopedia. In medicine, glycoprotein IIb/IIIa (GPIIb/IIIa, also known as integrin Î±IIbÎ²3) is an integrin complex found on platelets. It is a receptor for fibrinogen and von Willebrand factor and aids platelet activation.