<unk>  has been reported in only a few families worldwide. According to a 2011 study by Bermejo-Sanchez,<unk>  – that is, the lacking of one or more limbs – occurs in roughly 1 out of every 71,000 pregnancies.
Tetra-amelia syndrome
Fox–Fordyce disease
Pott disease
Kyrle disease
Sabinas brittle hair syndrome
Salla disease
Carey Fineman Ziter syndrome
Degos disease