HJ Siemens, P Gerke, J Steinhoff, A Roth-Isigkeit, K Wagner, and S Bruckner. 2002. “A Prolonged APTT in a Patient With a Low Grade Malignant NHL - a Case Report”. Haematologica 87 (2). Pavia, Italy, ELT08-ELT08. https://doi.org/10.3324/%x.