Some trials applied patients' own EPCs mobilized and recruited by G-CSF [94] to the site of myocardial infarction; some used EPCs from the bone marrow in the coronary artery of patients with myocardial infarction [95–97] and successfully recovered the function of the left ventricle; some have started the second phase trials [98–100]; and some trials conducted direct endocardial injection of unfractionated bone marrow cells [101] or injection of mononuclear cells from patients' own bone marrow in critical limb ischemia [102], both of which have improved ischemic symptoms. Here, CSF3 is linked to myocardial infarction.