Fibrin                                                                                  RGD               Integrin &Heparin NH2-I-I-I--I-I--I-II-II-I-I-I--III-III-III-III-III-III-III-EDB-III-III--III--III-EDA-III-III-III-IIICS-III-III-I-I-I----COOH                          ---Collagen----                                                                                                                        Fibrin