BMC Health Services Research

Lobuteva A., Lobuteva L., Zakharova O., Gribova Y., Nesterova N., Avertseva I., Karpova M.

Myren B.J., De Hullu J.A., Koksma J.J., Gelderblom M.E., Hermens R.P.M.G., Zusterzeel P.L.M.