IBM Research, Yorktown Heights, New York, United States of America.|MLL Munich Leukemia Laboratory, Munich, Germany.|IBM Research, Yorktown Heights, New York, United States of America.|IBM Research, Yorktown Heights, New York, United States of America.|IBM Research, Yorktown Heights, New York, United States of America.|MLL Munich Leukemia Laboratory, Munich, Germany.|MLL Munich Leukemia Laboratory, Munich, Germany.|MLL Munich Leukemia Laboratory, Munich, Germany.|MLL Munich Leukemia Laboratory, Munich, Germany.|MLL Munich Leukemia Laboratory, Munich, Germany.|MLL Munich Leukemia Laboratory, Munich, Germany.|MLL Munich Leukemia Laboratory, Munich, Germany.|MLL Munich Leukemia Laboratory, Munich, Germany.