2608957 ECTA East China Takayasu Arteritis 2 2608956 ECTA electrochemical telomerase assay 2 2608960 ECTA enzyme-catalyzed therapeutic activation 2 2608959 ECTA enzyme-catalyzed therapeutic agent 2 2608955 ECTA Eurasian Colorectal Technologies Association 2 2608961 ECTA 9alpha,11alpha-epoxycholest-7-ene-3beta,5alpha,6alpha,19-tetrol 6-acetate 1 2608958 ECTA East China TA 1 2608954 ECTA European Conference on Tumor Angiogenesis and Antiangiogenic Therapy 1 2608962 ECTA extracapsular tonsillectomy and adenoidectomy 1