APA

van Leerdam M. E., Vreeburg E. M., Rauws E. A. J., Geraedts A. A. M., Tijssen J. G. P., Reitsma J. B. & Tytgat G. N. J. (20030904). Acute upper GI bleeding: did anything change? Time trend analysis of incidence and outcome of acute upper GI bleeding between 1993/1994 and 2000. : The American journal of gastroenterology.

Chicago

van Leerdam M E, Vreeburg E M, Rauws E A J, Geraedts A A M, Tijssen J G P, Reitsma J B and Tytgat G N J. 20030904. Acute upper GI bleeding: did anything change? Time trend analysis of incidence and outcome of acute upper GI bleeding between 1993/1994 and 2000. : The American journal of gastroenterology.

Harvard

van Leerdam M. E., Vreeburg E. M., Rauws E. A. J., Geraedts A. A. M., Tijssen J. G. P., Reitsma J. B. and Tytgat G. N. J. (20030904). Acute upper GI bleeding: did anything change? Time trend analysis of incidence and outcome of acute upper GI bleeding between 1993/1994 and 2000. : The American journal of gastroenterology.

MLA

van Leerdam M E, Vreeburg E M, Rauws E A J, Geraedts A A M, Tijssen J G P, Reitsma J B and Tytgat G N J. Acute upper GI bleeding: did anything change? Time trend analysis of incidence and outcome of acute upper GI bleeding between 1993/1994 and 2000. : The American journal of gastroenterology. 20030904.