TY - RPRT TI - A tree-based scan statistic for database disease surveillance. AU - Martin Kulldorff AU - Zixing Fang AU - Stephen J Walsh PY - 2003 DO - 10.1111/1541-0420.00039 UR - https://pubmed.ncbi.nlm.nih.gov/12926717/ ID - 12926717 ER -