van den Tweel, X. W., Hatzmann, J., Ensink, E., van der Lee, J. H., Peters, M., Fijnvandraat, K. and Grootenhuis, M. (2008) “Quality of life of female caregivers of children with sickle cell disease: a survey”, Haematologica. Pavia, Italy, 93(4), pp. 588-593. doi: 10.3324/haematol.11610.