K. Khrismawan, A. Z. Saleh, R. Sanif, and T. Theodorus, “Efficacy of NETDC (New England Trophoblastic Disease Center) prognostic index score to predict gestational trophoblastic tumor from hydatidiform mole”, Med J Indones, vol. 13, no. 1, pp. 40-6, Feb. 2004.