lymphoplasmacytic lymphoma prognosiswaldenstrom lymphoma prognosisprognosis for follicular lymphomanon hodgkin lymphoma prognosisdlbcl lymphoma prognosisprognosis for double hit lymphomaperipheral t cell lymphoma prognosisprognosis mantle cell lymphomafallicular lymphomastage 4 mantle cell lymphoma prognosismarginal zone lymphoma prognosislymphoma organizations