Teodor P Grantcharov, Linda Bardram, Funch-Jensen Peter, Jacob Rosenberg
Grantcharov T P, Bardram L, Peter F, Rosenberg J.
Laparoscopic performance after one night on call in a surgical department: prospective study
BMJ 2001; 323 :1222
doi:10.1136/bmj.323.7323.1222