TY  - RPRT
TI  - Cluster analysis and disease mapping--why, when, and how? A step by step guide.
AU  - S F Olsen
AU  - M Martuzzi
AU  - P Elliott
PY  - 1996
DO  - 10.1136/bmj.313.7061.863
UR  - https://pubmed.ncbi.nlm.nih.gov/8870578/
ID  - 8870578
ER  -