1. Sina Trauma and Surgery Research Center, Sina HospitalTehran University of Medical Sciences Hasan‐Abad Square, Imam Khomeini Ave. Tehran 11365‐3876 Iran
2. Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in MedicineTehran University of Medical Sciences Number 88, Italy Street, Between Ghods Street and Vesal Shirazi Street Tehran 14177‐55469 Iran
3. Pediatric Urology and Regenerative Medicine Research Center, Children's Medical Center, Pediatric Center of ExcellenceTehran University of Medical Sciences No. 62, Dr. Gharibs Street, Keshavarz Boulevard Tehran 1419733151 Iran
4. Department of Tissue Engineering, School of Advanced Technologies in MedicineMazandaran University of Medical Sciences Next to Tooba Medical Building, Khazar Boulevard Sari 48471‐91971 Iran
5. Department of Orthopedic Surgery, Rothman InstituteThomas Jefferson University 1925 Chestnut Street, 5th Floor Philadelphia Pennsylvania 19107 USA