Department of Gastroenterology;
VUmc University Medical Center;
Amsterdam;
PO Box 7057;
Amsterdam 1007 MB;
The Netherlands;
Department of Internal Medicine;
VUmc University Medical Center;
Amsterdam;
PO Box 7057;
Amsterdam 1007 MB;
The Netherlands;
Laboratory of Immunogenetics;
Department of Pathology;
VUmc University Medical Center;
Amsterdam;
PO Box 7057;
Amsterdam 1007 MB;
The Netherlands;
Department of Internal Medicine;
Academic Hospital Maastricht;
P. Debyelaan 25;
6229 HX;
Maastricht;
The Netherlands;
血浆同型半胱氨酸; 维生素B6; 水平测定; 腹腔疾病; 甲基四氢叶酸还原酶; 维生素B12; MTHFR基因; 健康对照组;