The multiplication or reproduction of granulosa cells, resulting in the expansion of the granulosa cells population. A granulosa cell is a supporting cell for the developing female gamete in the ovary of mammals. They develop from the coelomic epithelial cells of the gonadal ridge. [ http://www.ncbi.nlm.nih.gov/pubmed/22383759 ]
This is just here as a test because I lose it