TY - GEN AU - Blombäck,B TI - In memoriam, Per Wallén, 1927-1999 SN - 0049-3848 PY - 1999///1007 KW - Hematology KW - history KW - History, 20th Century KW - Humans KW - Sweden KW - Tissue Plasminogen Activator N1 - Publication Type: Biography; Historical Article; Journal Article; Portrait ER -