Pocket warming of bupivacaine with fentanyl to shorten onset of labor epidural analgesia: A double-blind randomized controlled clinical trial. - Balon, Tyler M.; Xia, Yun; McKeown, Johnny; Wang, Jack; Abbott, Justin J.; Palettas, Marilly; Uribe, Alberto; Echeverria Villalobos, Marco; Coffman, John C.; Hu, Ling-Qun (PLoS ONE, 2024)