Chin, K.-Y., Soelaiman, I.-N., Mohamed, I. N., Ahmad, F., Ramli, E. S. M., Aminuddin, A., & Ngah, W. Z. W. (2013). Sex hormones in Malay and Chinese men in Malaysia: are there age and race differences? . Clinics, 68(2), 159-166. https://doi.org/10.6061/CLINICS/2013(02)OA07