Berit Grevstad
发表
Jesper Kristiansen,
Søren Peter Lund,
Berit Grevstad,
2008
.
Martin Wolf,
Gerhard Pichler,
Simon Hyttel-Sorensen,
2015,
BMJ : British Medical Journal.
Martin Wolf,
Gunnar Naulaers,
Gerhard Pichler,
2013,
Trials.