Παραπομπή APA

Helliwell, P. S., Porter, G., & Taylor, W. J. (2007). Polyarticular psoriatic arthritis is more like oligoarticular psoriatic arthritis, than rheumatoid arthritis. BMJ Group.

Παραπομπή Chicago Style

Helliwell, P S., G. Porter, και W J. Taylor. Polyarticular Psoriatic Arthritis Is More Like Oligoarticular Psoriatic Arthritis, Than Rheumatoid Arthritis. BMJ Group, 2007.

Παραπομπή MLA

Helliwell, P S., G. Porter, και W J. Taylor. Polyarticular Psoriatic Arthritis Is More Like Oligoarticular Psoriatic Arthritis, Than Rheumatoid Arthritis. BMJ Group, 2007.

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