ETS1-AS1 and neuroblastoma: In nude mice, subcutaneous injection of neuroblastoma cells firmly transfected with pancEts‐1 specific short hairpin RNAs resulted in the growth of xenografts, and tail vein injection of BE (2)‐C cells stably transfected with pancEts‐1 specific short hairpin RNAs led to fewer lung metastatic sites and grater survival probability.253