For example, does it help to know whether you are dealing with psoriatic arthritis rather than a generic inflammatory arthritis?
Umzekelo, ingaba kuyanceda ukwazi ukuba ujongene nesifo sokuqaqamba kwamalungu esihlasela abantu abanengulo ethile yolusu (psoriatic arthritis) okanye unesifo sokuqaqamba kwamalungu okunokukrala?