Newman, C., Connolly, S., MacEneaney, O., O’Keane, C., & McQuaid, S. E. (2019). Leydig Cell Hyperplasia Mimicking a Testicular Tumour in a Patient with Klinefelter Syndrome. European Journal of Case Reports in Internal Medicine, 6(6). https://doi.org/10.12890/2019_001129