NCAM1 and lymphoma: 2 Chan Chan JK JK Sin Sin VC VC Wong Wong KF KF Ng Ng CS CS Tsang Tsang WY WY Chan Chan CH CH Cheung Cheung MM MM Lau Lau WH WH Nonnasal lymphoma expressing the natural killer cell marker CD56: a clinicopathologic study of 49 cases of an uncommon aggressive neoplasm Nonnasal lymphoma expressing the natural killer cell marker CD56: a clinicopathologic study of 49 cases of an uncommon aggressive neoplasm Blood.