Hans Seyfried

发表

Bengt Johansson, Anders Hultqvist, Theo Neger, 2005 .

Wim G. Goettsch, Iris Pasternack, Sarah Kleijnen, 2014, International Journal of Technology Assessment in Health Care.

Bengt Johansson, Anders Hultqvist, Xue-Song Bai, 2007 .