Most commonly, rheumatoid factor is used as a blood test for the diagnosis of rheumatoid arthritis. Rheumatoid factor is present in about 80% of adults (but a much lower proportion of children) with rheumatoid arthritis.
Most flights originating from the US have a 'two piece' limit for luggage - you can check two bags, and you pay extra per bag. This applies whether the flight is domestic within the US or international. Most flights that originate from outside the US have a weight limit for total checked baggage - a miserly 20kg/44lbs if you're traveling in coach class, 30kg/66lbs for business class and 40kg/88lbs for first class.
Check in queue was slow that result long queue and people are frustrating. Thing cannot put in checked in baggage when ask can hand carriage the staff mention is fine and okay for that. I bought 2 powerbank as gift. When i pass the security check the staff mention only limit 20k and the powerbank was only 15k. I put inside my bag and another staff mention limit only 3k.