This is not a direct indication as to how commonly these diseases are the actual cause of Rheumatoid factor positive, but gives a relative idea as to how frequent these diseases are seen overall. 1  3 diseases that are common. 2  2 diseases that are very rare. 3  8 diseases without any prevalence information. Causes of Rheumatoid factor positive that are common The following causes of Rheumatoid factor positive are diseases or conditions that affect more than 1 million people in the USA: Connective tissue diseases.
Answers.comÂ® is making the world better one answer at a time. Straight Talk now offers 4G LTE on AT&T with unlimited talk, text, and data for only $45 a month.
I currently have 3 phones with Straight Talk. I have one that is unlocked that I will be switching now to AT&T. My question is, I also have an Iphone 4 and a Samsung Galaxy S3 that I bought with Straight Talk/ as Straight Talk phones. just visited my local AT&T store with the intent of switching my iPhone 4 from Straight Talk to AT&T and the employee working there told me that he had never successfully been able to port a phone number over from Straight Talk and that I would have to get a new number.