Verheyen, J., Litau, E., Sing, T., Däumer, M., Balduin, M., Oette, M., Fätkenheuer, G., Rockstroh, J. K., Schuldenzucker, U., Hoffmann, D., Pfister, H., & Kaiser, R. (2006). Compensatory mutations at the HIV cleavage sites p7/p1 and p1/p6-gag in therapy-naive and therapy-experienced patients. Antiviral Therapy, 11(7), 879-887.