diff --git a/bus-gateway/docs/iti67.mmd b/bus-gateway/docs/iti67.mmd
index 0ccacc1..2f6ce5d 100644
--- a/bus-gateway/docs/iti67.mmd
+++ b/bus-gateway/docs/iti67.mmd
@@ -2,12 +2,12 @@
 sequenceDiagram
     autonumber
     participant HIS_A
-    participant NodoDominio as Nodo (Emisor)
+    participant NodoDominio as Nodo A
     box rgb(237,233,254) PINS
         participant FederadorNacion as Federador
         participant IndiceNacion as Indice Documentos
     end
-    participant NodoDominio2 as Nodo (Receptor)
+    participant NodoDominio2 as Nodo B
     Note over HIS_A,FederadorNacion: 1. Busqueda y resolución de Identidad
     HIS_A->>NodoDominio: ITI-67: GET /DocumentReference?patient.identifier=[ID_Local]
     NodoDominio->>FederadorNacion: GET /Patient?identifier=[ID_Local]