Features described in<unk>  include: * Short stature * Developmental delay * Low muscle tone (hypotonia) especially in infancy * Characteristic facial features * Hairy elbows (hypertrichosis cubiti)<unk>  may be related to global developmental delays, sleeping difficulties, feeding and digestion complexities, unusual facial features, short/petite stature, hypotonia, dental issues, hairy elbows, long eyelashes, etc.
Wiedemann–Steiner syndrome
Beckwith–Wiedemann syndrome
Wiedemann–Rautenstrauch syndrome
Laurence–Moon syndrome
Bardet–Biedl syndrome
Wilson–Turner syndrome
Miller–Dieker syndrome
Smith–Magenis syndrome