A subset of probands have growth delay (30.5%, n = 61/200), particularly probands with variation in HNRNPH1 (62.5%, n = 5/8), HNRNPH2 (47.8%, n = 11/23), HNRNPR (90%, n = 9/10, significantly more so than HNRNPK probands [p = 0.03]), and HNRNPUL2 (50%, n = 3/6). Here, HNRNPH2 is linked to Growth delay.