ALK and mature T-cell and NK-cell non-Hodgkin lymphoma: The 5‐year OS for the individual groups was as follows: PTCL‐NOS: 33.6%; AITL: 31.9%; ALK‐positive ALCL: 66.7%; ALK‐negative ALCL: 54.5%; and EATL: 0% (Figure 2B).