diff --git a/schemas/entiteAssociation/centreMedical.drawio b/schemas/entiteAssociation/centreMedical.drawio
new file mode 100644
index 0000000..b025fbc
--- /dev/null
+++ b/schemas/entiteAssociation/centreMedical.drawio
@@ -0,0 +1 @@
+<mxGraphModel><root><mxCell id="0"/><mxCell id="1" parent="0"/></root></mxGraphModel>
\ No newline at end of file