K. Russameecharoen, B. Phattanachindakun, S. Swasdimongkol, C. Vantanasiri, and S. Viboonchard, “A 6-year Experience of Fetal Skeletal Anomalies Prenatal Diagnosis at Anomaly Clinic, Siriraj Hospital”, Siriraj Med J, vol. 58, no. 10, pp. 1046–1049, Sep. 2006.