H4A1P3T1E1N1S1
12 points
HAPTENS is validvalid
HAPTEN, a substance similar to an antigen [n]
HAPTEN, a substance similar to an antigen, also HAPTENE [n]
HAPTEN, a substance similar to an antigen [n]
HAPTEN, a substance similar to an antigen, also HAPTENE [n]