[1] Stanford Univ, Biomat & Adv Drug Delivery Lab, Sch Med, 1050 Arastradero Rd, Palo Alto, CA 94304 USA
[2] Univ Texas Arlington, Dept Mat Sci & Engn, Arlington, TX 76019 USA
[3] Iran Univ Med Sci, Cellular & Mol Res Ctr, Tehran, Iran
[4] Riga Tech Univ, Fac Mat Sci & Appl Chem, Inst Gen Chem Engn, Rudolfs Cimdins Riga Biomat Innovat & Dev Ctr, Pulka Str 3-3, LV-1007 Riga, Latvia
[5] Stanford Univ, Div Cardiovasc Med, Dept Med, Sch Med, Stanford, CA 94305 USA
[6] Stanford Univ, 1050 Arastradero Rd,Room A148, Palo Alto, CA 94304 USA