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Table 1 Inclusion and exclusion criteria

From: Musculoskeletal diagnostic ultrasound imaging for thickness measurement of four principal muscles of the cervical spine -a reliability and agreement study

Inclusion criteria
• Adults (20–70 years of age)
• Females
• With or without neck pain
Exclusion criteria
• Diagnosis of recent trauma, spinal surgery, fractures or structural pathologies in the area of interest, to ensure the right anatomical landmarks on the ultrasound image during the ultrasound procedure of identifying the muscle
• Not able to comply with the examination procedure
• If for whatever reason anatomical landmarks and muscle borders could not be clearly enough identified on the ultrasound images for analysis