The extent of a focal tendon abnormality was intrasubstance in none (0%) of 16 patients with full-thickness tears, one (20%) of five patients with bursal surface partial-thickness tears, two (20%) of 10 patients with articular surface partial-thickness tears, and two (15%) of 13 patients with tendons without tear.
1 Adequate Intake (AI), where no RDA has been established, but the amount established is somewhat less firmly believed to be adequate for everyone in the demographic group.  Tolerable upper intake levels (UL), to caution against excessive intake of nutrients (like vitamin A) that can be harmful in large amounts.
So, not sure what this whole RDA/RBA difference is? RBA = ReBuildable Atomizer - These usually have a tank that holds liquid, so you don't have to refill your liquid as quickly as an RDA. You still build your own coils/wicks, but isn't as easy to replace/change/modify as an RDA.