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de Vries, Corlien JH, Margreet Wieringa-de Waard, Cléo-Lotte AG Vervoort, Willem M. Ankum, a Patrick JE Bindels. Abnormal Vaginal Bleeding in Women of Reproductive Age: A Descriptive Study of Initial Management in General Practice. BioMed Central, 2008.

de Vries, Corlien JH, et al. Abnormal Vaginal Bleeding in Women of Reproductive Age: A Descriptive Study of Initial Management in General Practice. BioMed Central, 2008.