S1U1B3S1P3E1C3I1A1L1I1S1I1N1G2
22 points
SUBSPECIALISING 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]