KLHL40 and nemaline myopathy: Two male babies with nemaline myopathy‐8 also showed appendicular hypertonia exome sequencing identified a recurrent missense variant and a novel splice‐acceptor variant in KLHL40 Four additional novel pathogenic variants of KLHL40 were identified and it is speculated that nemaline myopathy‐8 is not‐so‐rare in Chinese population.