I am not sure whether I completely understood your question. However, it sounds to me that it caused by the length of your journal name. If I am correct, you can try with its standard abbreviated form as 'Mediterr J Rheumatol'. You can find this even from their official website. If this is not the case, please elaborate the problem. Perhaps, we would be able to help you.
Go to the article page in your ResearchGate account. On the right, click the little down arrow beside the word "share." Select "edit" and you should be able to add or change the information about your paper.