"Threshold of 25(OH)D and consequently adjusted parathyroid hormone reference intervals: data mining for relationship between vitamin D and parathyroid hormone"
This research was conducted by M. Gong, K. Wang, H. Sun, K. Wang, Y. Zhou, Y. Cong, X. Deng, and Y. Mao. It was published in the Journal of Endocrinological Investigation. The study explores the relationship between vitamin D and parathyroid hormone using data mining techniques.