The synergistic role of virtual coaching with simulation‐based mastery learning for upper endoscopy oleh Tiffany Nguyen‐Vu, YungKa Chin, Carmel Malvar, Patricia Anne Cabral‐Prodigalidad, Mark De Lusong, Hasan Maulahela, Parit Mekaroonkamol, Andrew Ong, Angela Djajakusuma, Thomas Myint, Hilda Nurmalihah, Ravishankar Asokkumar, Carlos Francisco, Jesse Liu, Rungsun Rerknimitr, Amandeep Shergill, Silvia Sanduleanu, Tonya Kaltenbach, Roy Soetikno