and this approach does not intend to be representative of the results that would have occurred in those circumstances. For example, our research and development costs in total, and in the periods presented, may have been different; our speed to commercialization and resulting sales, if any, may have been different; or our costs to manufacture may have been different. In addition, our marketing efforts may have been received differently by our customers. As such, in total, there can be no assurance that our Adjusted income amounts would have been the same as presented had we discovered and developed the acquired intangible assets.

Acquisition-Related Costs

Adjusted income is calculated prior to considering transaction, integration, restructuring and additional depreciation costs associated with business combinations because these costs are unique to each transaction and represent costs that were incurred to restructure and integrate two businesses as a result of the acquisition decision. For additional clarity, only transaction costs, additional depreciation and restructuring and integration activities that are associated with a business combination or a net-asset acquisition are included in acquisition-related costs. We have made no adjustments for the resulting synergies.

We believe that viewing income prior to considering these charges provides investors with a useful additional perspective because the significant costs incurred in connection with a business combination result primarily from the need to eliminate duplicate assets, activities or employees––a natural result of acquiring a fully integrated set of activities. For this reason, we believe that the costs incurred to convert disparate systems, to close duplicative facilities or to eliminate duplicate positions (for example, in the context of a business combination) can be viewed differently from those costs incurred in other, more normal, business contexts.

The integration and restructuring costs associated with a business combination may occur over several years, with the more significant impacts ending within three years of the transaction. Because of the need for certain external approvals for some actions, the span of time needed to achieve certain restructuring and integration activities can be lengthy. For example, due to the highly regulated nature of the pharmaceutical business, the closure of excess facilities can take several years, as all manufacturing changes are subject to extensive validation and testing and must be approved by the FDA and/or other global regulatory authorities.

Discontinued Operations

Adjusted income is calculated prior to considering the results of operations included in discontinued operations, as well as any related gains or losses on the sale of such operations such as the sale of our Capsugel business, which we sold in August 2011, and the sale of our Nutrition business, which we sold in November 2012. We believe that this presentation is meaningful to investors because, while we review our businesses and product lines for strategic fit with our operations, we do not build or run our businesses with the intent to sell them. (Restatements