Serum angiopoietin-2 and ?-hCG as predictors of prolonged uterine bleeding after medical abortion in the first trimester.
Wang M, Chen J, Ying J, Yu J, Huang B, Ren Z, Wang X, Guo Q, Wang Y, Qiu L, Yu H, Wan R. Serum angiopoietin-2 and ?-hCG as predictors of prolonged uterine bleeding after medical abortion in the first trimester. PLoS One. 2013; 8(5):e63755.