The Liberal Party.
The nearest I can find is this, from their 2008-2009 Manifesto:
“Liberals call for the establishment of regional assemblies which would include health powers and would bring local health provision into government. This would solve the problem of the inherent weakness in Community Health Councils (my italics ???) and greatly improve the rights of patients and other users within the health service and would improve grant aid facilities for self-help groups, such as “Well Women” clinics.“
The Green Party
All I can find is an even briefer statement from their ‘Manifesto for a Sustainable Society’
The role of Patients' Forums as users' advocates will be developed to provide greater assistance to individuals in difficulties or disputes with the health services.
A search for ‘Health Policy’ brings up ‘UKIP Health and Welfare Policy’ which in turn brings up a ‘Not Found’ notice.