Disclosure in Annual Financial Statements. If an estimate is disclosed in an interim period and that estimate is significantly changed in the final interim period (where there is no publishing of an interim report - which is usually the case), then the change in estimate is disclosed in the annual report.
The PenFill cartridge that you are currently using can be kept at room temperature up to 42 days, as long as they are kept below 86 degrees F (30 degrees C). Throw away unrefrigerated disposable Levemir PenFill cartridges after 42 days from the cartridges first use, even if it still contains Levemir.
Likewise, I also found that my local Target had the best price on the Lantus vial. The expiration date on an open vial or pen is 28 days from initial use. However, when treated carefully (stored in the fridge, not shaken or rolled, no air or Lantus injected back in), it can last considerably longer than that.