TY - JOUR AU - Velummailum, Russanthy Ruthiran AU - McKibbon, Chelsea AU - Brenner, Darren R AU - Stringer, Elizabeth Ann AU - Ekstrom, Leeland AU - Dron, Louis PY - 2023 DA - 2023/4/5 TI - Data Challenges for Externally Controlled Trials: Viewpoint JO - J Med Internet Res SP - e43484 VL - 25 KW - external control arm KW - synthetic control arm KW - single-arm trial KW - real-world evidence KW - regulatory approval KW - data KW - clinical KW - decision-making KW - efficacy KW - rare conditions KW - trial SN - 1438-8871 UR - https://www.jmir.org/2023/1/e43484 UR - https://doi.org/10.2196/43484 UR - http://www.ncbi.nlm.nih.gov/pubmed/37018021 DO - 10.2196/43484 ID - info:doi/10.2196/43484 ER -