Optimal treatment for women with a persisting pregnancy of unknown location, a randomized controlled trial: The ACT-or-NOT trial.
Barnhart KT, Sammel MD, Stephenson M, Robins J, Hansen KR, Youssef WA, Santoro N, Eisenberg E, Zhang H. Optimal treatment for women with a persisting pregnancy of unknown location, a randomized controlled trial: The ACT-or-NOT trial. Contemp Clin Trials. 2018 10; 73:145-151.