APA

Harbeck N., Dettmar P., Thomssen C., Berger U., Ulm K., Kates R., Höfler H., Jänicke F., Graeff H. & Schmitt M. (19990715). Risk-group discrimination in node-negative breast cancer using invasion and proliferation markers: 6-year median follow-up. : British journal of cancer.

Chicago

Harbeck N, Dettmar P, Thomssen C, Berger U, Ulm K, Kates R, Höfler H, Jänicke F, Graeff H and Schmitt M. 19990715. Risk-group discrimination in node-negative breast cancer using invasion and proliferation markers: 6-year median follow-up. : British journal of cancer.

Harvard

Harbeck N., Dettmar P., Thomssen C., Berger U., Ulm K., Kates R., Höfler H., Jänicke F., Graeff H. and Schmitt M. (19990715). Risk-group discrimination in node-negative breast cancer using invasion and proliferation markers: 6-year median follow-up. : British journal of cancer.

MLA

Harbeck N, Dettmar P, Thomssen C, Berger U, Ulm K, Kates R, Höfler H, Jänicke F, Graeff H and Schmitt M. Risk-group discrimination in node-negative breast cancer using invasion and proliferation markers: 6-year median follow-up. : British journal of cancer. 19990715.