Here is a page with some examples of CRF's and here is another one with our top 5 pages of this section.

We put some pages together to show you how easy it is to use LibreClinica / OpenClinica. All information here was written for OpenClinica, but all of it can be used in LibreClinica, as it is fully compatible.
(On this page you can read more about the difference between OpenClinica and LibreClinica.)

Use the following links for a description of the basic functionality of LibreClinica / OpenClinica and some more advanced topics:

• create a new Event Definition
• assign a CRF to a study

• create a new CRF
• create a new version of an existing CRF
• transfer existing data to a a new version of a CRF
• one version of a CRF for one site, another version for another site
• using Tip to display instructions
• a CRF with a file
• a CRF with an image
• 3 methods to create a time field
• the number of minutes between two time fields
• the number of days between two date fields
• getExternalValue, postMessage and controlled vocabularies
• changing the layout of a CRF
• aligning two columns
• getting rid of the yellow comment-fields in the XL-sheet
• showing or hiding items on a CRF, based on the input of another item (SimpleConditionalDisplay)
• showing or hiding items on a CRF using a rule
• setting defaults for repeating items using the insert-action
• displaying the number of characters left
• a visual analogue scale or VAS
• a warning in a CRF
• a link to the ICD10 site in a CRF
• de-selecting a radio-button
• a regular expression for the StudySubjectID
• the Event-date in your CRF
• using items from other Events
• an automatic row-number in a repeating-item-group

• A practical introduction into Users and Roles
• Assigning users to sites: why and how

• General

• finding OID's for creating a rule
• a script for scheduling a rule

• DiscrepancyNoteAction

• a simple rule with two items
• the ct-operator for a rule with a multi-option-item

• EMailAction

• using a rule to send a mail

• ShowAction

• showing or hiding items on a CRF using a rule
• showing a RepeatingItemsGroup

• InsertAction

• setting defaults for repeating items using the insertaction

• getting the data into SPSS
• checkboxes and multi-selects in SPSS
• getting the data into SAS
• a self-signed certificate for tomcat
• testing OpenClinica 3.12
• properties-files, i18n and translating
• backup and restore of OpenClinca
• restarting a completely stuck tomcat
• setting up a test environment
• running both tomcat 6 and 7
• create a technical administrator, or a root-alike
• some Postgres-commands that can come in handy
• SchemaSpy: a graphical representation of the database
• datalisting, or making a paper printout of your data (MsAccess)
• two manuals for your end-users, if you're short of time
• workshop java-script

• get those services running
• using web-services to add subjects and schedule events
• using web-services to test the capacity of OpenClinica

A lot of the information here was also submitted to the WikiBook OpenClinica User Manual.