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:

…et al, 1999; Weigert et al, 2002), insulin-like growth factor 1 (IGF-1) (Brink et al, 1999; Haddad et al, 2003), basic fibroblast growth factor (bFGF) (Peng et al, 2001), vascular endothelial growth factor (VEGF) (Otani et al, 1998; Tamarat et al, 2002) and angiopoietin 2 (Otani et al, 2001).
Background