Comparative effectiveness trial of metformin versus insulin for the treatment of gestational diabetes in the USA: clinical trial protocol for the multicentre DECIDE study oleh Maged M Costantine, Chloe A Zera, William A Grobman, Mark B Landon, Erika Werner, Ann Scheck McAlearney, Kartik K Venkatesh, Anna Bartholomew, Nasim C Sobhani, Ashley N Battarbee, Maisa N Feghali, Camille E Powe, Patrick Catalano, Cora MacPherson, Rebecca G Clifton, Donna Gregory, Anne Trinh, Lauren G Fiechtner, Donna Rice, Sharon Cross, Huban Kutay, Steven Gabbe, Kim Boggess, Vivek Katukuri, Kacey Eichelberger, Tania Esakoff, Lori Harper, Anjali Kaimal, Martha Kole-White, Hector Mendez-Figueroa, Malgorzata Mlynarczyk, Anthony Sciscione, Lydia Shook, David M Stamilio, Samantha Wiegand, Noelia M Zork, George Saade