Please select the eligibility criteria that correspond to the clinical trial below.
Title: Manipulation, Exercise, and Self-Care for Neck Pain
Brief Summary: The purpose of this study is to compare three treatments for neck pain: 1) rehabilitative exercise, 2) chiropractic spinal manipulation combined with rehabilitative exercise, and 3) self-care education.


Options:
A: Inclusion Criteria:

* Patients with at least two weeks of neck pain
* Last episode starts at a maximum of one year ago
* Age between 18 and 70 years
* Patient is willing to undergo the treatment
* Neck pain is mechanical and can be provocated by movements or postures of the neck
* Neck pain is the main problem to treat
* Neck pain may also give pain in the upper arm or cervicogenic headaches

Exclusion Criteria:

* Appearance of "red flags"
* Cervical surgery in the past
* Pregnancy
* Whiplash trauma
* Health conditions with may disturb the treatment or makes it impossible to undergo the treatment.
* Not enough understanding of the Dutch questionnaires
* Undergoing treatments like physical therapy, manual therapy, osteopathy, chiropraxis, acupuncture, other types of exercise therapy during the last three months
B: Inclusion Criteria:

* Adults between 18 and 60 years old from the city and the surrounding Trois-Rivières with chronic cervical pain of non-traumatic origin (chronic or recurrent cervical pain that lasted at least 6 months)

Exclusion Criteria:

Exclusion criteria for the project are:

* Surgery to the cervical spine
* Neoplasms
* Severe osteoarthritis
* Ankylosing spondylitis
* Hypertension
* Referred pain in the cervical area
* Central or peripheric nervous system dysfunction
* Vascular disease
* Treated cardiovascular disease
* Inflammatory or infectious disease of the cervical spine
* Metabolic or endocrine diseases
* Pregnancy
* Specific rehabilitation training for the neck or already under manual therapy for neck pain
* Patient suffering from dizziness, vertigo or headache suspected to be cervicogenic or of unknown origin will not be involved in the study.
C: Inclusion Criteria:

* Chronic mechanical neck pain (defined as current episode \> 12 weeks' duration).
* Quebec Task Force classifications 1, 2, 3 and 4. This includes patients with neck pain, stiffness or tenderness, with or without musculoskeletal and neurological signs.

Exclusion Criteria:

* Previous cervical spine surgery
* Neck pain referred from local joint lesions of the lower extremities or from visceral diseases
* Progressive neurological deficits due to nerve root or spinal cord compression
* Existing cardiac disease requiring medical treatment
* Blood clotting disorders
* Diffuse idiopathic hyperostosis
* Infectious and non-infectious inflammatory or destructive tissue changes of the cervical spine
* Presence of significant infectious disease, or other severe disabling health problems
* Substance abuse
* Ongoing treatment for neck pain by other health care providers
* Pregnant or nursing women
* Average neck pain score of less than 30 percentage points
* Pending or current litigation
D: Exclusion Criteria:

* Pregnant women, due to use of diagnostic procedures (x-rays) and study treatments (NSAIDs and narcotic medications)

Answer: C