diff --git a/bus-gateway/controllers/iti65.js b/bus-gateway/controllers/iti65.js
index ffcc642..5e7b586 100644
--- a/bus-gateway/controllers/iti65.js
+++ b/bus-gateway/controllers/iti65.js
@@ -3,10 +3,10 @@ const createError = require('http-errors');
 const config = require('../config');
 const { getBusToken, createBusRequest } = require('../utils/busAuth');
 const { findPatient } = require('../services/patient');
-const { createDocumentReference, findDocumentReferenceById, findDocumentReferenceByUrl } = require('../services/documentReference');
+const { createDocumentReference, findDocumentReferenceById } = require('../services/documentReference');
 const { logger } = require('../utils/logger');
 const { v4: uuidv4 } = require('uuid');
-const { getResourceByUrl } = require('../services/fhir');
+const { getResourceByUrl, processDocumentBundleTransaction } = require('../services/fhir');
 
 
 const DOCUMENT_REFERENCE_RESOURCE_TYPE = "DocumentReference";
@@ -22,7 +22,7 @@ const MASTER_ID_SYSTEM = 'urn:ietf:rfc:3986'
 
 
 function extractResource(resources, resourceType) {
-    return resources.map(r => r.data).filter(r => r.resourceType === resourceType)[0];
+    return resources.filter(r => r.resourceType === resourceType)[0];
 }
 
 function extractLocalIdentifier(patient) {
@@ -68,6 +68,13 @@ function generateDocumentReferenceResource(subjectReference, bundleUrl) {
     return documentRefernece;
 }
 
+async function getResourcesFromTransactionResponse(transactionResponse) {
+    const promises = transactionResponse.entry.map(async (e) => {
+        const resource = getResourceByUrl(`${config.fhir.url}/${e.response.location}`);
+        return resource;
+    });
+    return Promise.all(promises);
+}
 
 /**
  * ITI-65: Provide Document Bundle (MHD)
@@ -93,28 +100,29 @@ async function provideDocumentBundle(req, res, next) {
         );
 
         // Paso 1: Ejecuto la transcción en el servidor hapi subyacente
-        const transactionResponse = await processTransaction(transaction);
-        const resources = [];
-        transactionResponse.entry.map(e => e.response);
-        transactionResponse.entry.map(e => e.response).foreEach(r => {
-            const resource = getResourceByUr(r.location);
-            resources.push(resource);
+        const transactionResponse = await processDocumentBundleTransaction(transaction);
+
+        const resources = await getResourcesFromTransactionResponse(transactionResponse);
 
-        });
         // Paso 2: Obtengo el paciente local (tal como se guardo en la trasnaccion)
         const localPatient = extractResource(resources, PATIENT_RESOURCE_TYPE);
         // Paso 3: Obtengo el documento IPS local (tal como se guardo en la transacción)
         const localIPSDocument = extractResource(resources, IPS_DOCUMENT_RESOURCE_TYPE)
 
         const localPatientIdentifier = extractLocalIdentifier(localPatient);
-        const patientSearchset = await findPatient(token, { identifier: `${localIdentifier.system}|${localIdentifier.value}` });
+
+        const patientSearchset = await findPatient(token, { identifier: `${localPatientIdentifier.system}|${localPatientIdentifier.value}` });
         if (patientSearchset.total == 0) {
             throw createError(404, 'Patient does not exists');
         }
         const nationalPatientId = patientSearchset.entry[0].fullUrl;
         const bundleReference = `${config.baseURL}/fhir/Bundle/${localIPSDocument.id}`;
 
-        const createdDocumentReference = await createDocumentReference(token, createdDocumentReference);
+
+        const documentReference = generateDocumentReferenceResource(nationalPatientId, bundleReference);
+
+        const createdDocumentReference = await createDocumentReference(token, documentReference);
+
         return res.status(200).json(createdDocumentReference);
 
     } catch (err) {
diff --git a/bus-gateway/controllers/iti67.js b/bus-gateway/controllers/iti67.js
index 6f5e626..68c1c6b 100644
--- a/bus-gateway/controllers/iti67.js
+++ b/bus-gateway/controllers/iti67.js
@@ -14,15 +14,8 @@ function extractNationalIdentifier(patient) {
     return identifiers.find(id => id.system === NATIONAL_ID_SYSTEM) || null;
 }
 
-async function getPatient(token, identifier) {
-    const response = await findPatient(token, { identifier: identifier });
-    return Promise.resolve(response.data.entry[0].fullUrl);
-}
 
-async function getDocumentReferencesForPatient(token, patient) {
-    const searchset = await findDocumentReferenceByPatient(token, patient)
-    return Promise.resolve(searchset);
-}
+
 /**
  * ITI-67: Find Document References (MHD)
  *
@@ -52,14 +45,15 @@ async function listDocumentReference(req, res, next) {
             ].join(',')
         );
         // 1. Obtengo el identificador nacional del paciente en forma de referencia 
-        const patientId = await getPatient(token, localPatientIdentifier);
-        if (!patientId) {
+        const patientSearchset = await findPatient(token, { identifier: localPatientIdentifier });
+        if (!patientSearchset) {
             throw createError(422, 'Could not resolve national identifier for the given patient');
         }
+        const patientNationalId = patientSearchset.entry[0].fullUrl
         // 2. Obtengo el listado de entradas del indice de atenciones asociadada al id de paciente.
-        const searchset = await getDocumentReferencesForPatient(token, patientId);
+        const documentReferenceSearchset = await findDocumentReferenceByPatient(token, patientNationalId)
 
-        res.status(200).json(searchset);
+        res.status(200).json(documentReferenceSearchset);
     } catch (err) {
         next(err);
     }
diff --git a/bus-gateway/services/fhir.js b/bus-gateway/services/fhir.js
index cd6e63c..a6230c2 100644
--- a/bus-gateway/services/fhir.js
+++ b/bus-gateway/services/fhir.js
@@ -14,14 +14,7 @@ async function processDocumentBundleTransaction(transactionBundle) {
     const response = await axios.post(HAPI_FHIR_SERVER_URL, transactionBundle, {
         headers: { 'Content-Type': 'application/fhir+json' },
     });
-    const processed = response.data;
-    const resources = [];
-    const responses = processed.entry.map(e => e.response);
-    for (i = 0; i < responses.length; i++) {
-        const resource = await axios.get(`${config.fhir.url}/${responses[i].location}`)
-        resources.push(resource);
-    }
-    return Promise.resolve(resources);
+    return response.data;
 }