Phupong, V., Taechakraichana, N. and Limpaphayom, K. (1998) “Serum osteocalcin and urine type I collagen degradation product in women within the first five years after menopause”, Thai Journal of Obstetrics and Gynaecology. Bangkok, Thailand, 10(3), pp. 161–165. available at: https://he02.tci-thaijo.org/index.php/tjog/article/view/257061 (accessed: 29 September 2026).