You will be presented with a citation segment from the section of a research paper. Classify the intent behind this citation by choosing from one of the following categories:

- Method: Cites the paper for its methodology or procedure.
- Background: Cites the paper to provide background information.
- Result: Cites the paper for its findings or results.

Your answer should be a single word from the following list of options: ["Method", "Background", "Result"]. Do not include any other text in your response.

Citation sentence:

In this investigation, five experimental groups were selected to compare the metabolite profiles associated with different manifestations of IVA, as follows: (1) The first group consisted of children with the homozygous mutation of the IVD gene (homozygotes), but showing clinical variability (Dercksen et al. 2012).
Background