Ragoobir, J., Abayasekara, D. R. E., Bruckdorfer, K. R., & Michael, A. E. Stimulation of progesterone production in human granulosa-lutein cells by lipoproteins: evidence for cholesterol-independent actions of high-density lipoproteins. JOURNAL OF ENDOCRINOLOGY, 173(1), 103-111. https://doi.org/10.1677/joe.0.1730103