Risk of gastric cancer and peptic ulcers in relation to ABO blood type: a cohort study.
Edgren
Gustaf
G
Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Box 281, SE-171 77 Stockholm, Sweden. gustaf.edgren@ki.se
Hjalgrim
Henrik
H
Rostgaard
Klaus
K
Norda
Rut
R
Wikman
Agneta
A
Melbye
Mads
M
Nyrén
Olof
O