S1U1B3S1P3E1C3I1A1L1I1S1E1D2
21 points
SUBSPECIALISED is validvalid
SUBSPECIALISE, to subspecialize [v]
SUBSPECIALISE, to practise a subspecialty, also SUBSPECIALIZE [v]
SUBSPECIALISE, to subspecialize [v]
SUBSPECIALISE, to practise a subspecialty, also SUBSPECIALIZE [v]