NBAS and acute liver failure: Biallelic NBAS variants were first associated with short stature, optic nerve atrophy, and Pelger‐Huet anomaly (SOPH, MIM 614800) in 2010,4 followed by reports of an association between biallelic NBAS variants and recurrent acute liver failure (RALF) or Infantile liver failure syndrome 2 in 2015 (ILFS2, MIM 616483).5