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:

Association between ATRX loss and copy number alterations Previous analysis of pediatric GBM has shown an association between tumors with concurrent mutations in H3F3A, TP53, and ATRX and copy number alterations (1).
Background