38: CRITICALLY ILL CHILDREN WITH SEVERE SEPSIS OFTEN HAVE SUB-TARGET MEROPENEM LEVELS EARLY IN THERAPY. (15th December 2022) - Paice, Kelli; Girdwood, Sonya Tang; Pavia, Kathryn; Mizuno, Tomoyuki; Tang, Peter; Curry, Calise; Gibson, Abigayle; Jones, Rhonda; Stoneman, Erin; Yunger, Toni; Dong, Min; Vinks, Alexander; et al.