--- a/Samples/FHIR/NOTES.txt	Fri Jan 05 16:36:44 2024 +0100
+++ b/Samples/FHIR/NOTES.txt	Fri Jan 05 17:36:06 2024 +0100
@@ -20,7 +20,7 @@
 
 (3) Start Orthanc:
 
-On Ubuntu 22.04:
+On Ubuntu 20.04 or 22.04:
 
 # LD_LIBRARY_PATH=/usr/lib/jvm/java-11-openjdk-amd64/lib/server/ Orthanc ./configuration.json
 
@@ -28,6 +28,11 @@
 (4) Access the FHIR server. For instance, using the FHIRPACK
 command-line client (https://gitlab.com/fhirpack/main):
 
+On Ubuntu 20.04:
+
+$ python3.9 -m pip install --user --upgrade pip
+$ python3.9 -m pip install --user --upgrade cffi fhirpack
+
 $ fp -s http://localhost:8042/fhir -o "getPatients" -p all -o "gatherSimplePaths id name.family name.given birthDate"
 $ fp -s http://localhost:8042/fhir -o "getEndpoints" -p all -o "gatherSimplePaths id address"
 $ fp -s http://localhost:8042/fhir -o "getImagingStudies" -p all -o "gatherSimplePaths identifier.value endpoint.reference subject.reference"