Padmashree Chaudhury Woodham, Julia E. Brittain, Arthur M. Baker, D. Leann, et al.. "Pregnancy/Preeclampsia Midgestation Maternal Serum 25-Hydroxyvitamin D Level and Soluble Fms-Like Tyrosine Kinase 1/Placental Growth Factor Ratio as Predictors of Severe Preeclampsia" (2011)
Available at: http://works.bepress.com/arthur-baker/31/