Dr. Kent R. Nilson dan rekan-rekannya dari John Hopkins University School of Medicine and Hygiene and Public Health, Baltimore, Maryland, berusaha memastikan apakah ada hubungan antara tranfusi produk darah dan VTE pada lebih dari 14.000 pasien yang menjalani operasi kanker usus.
Dr. Kent R. Nilsson and colleagues from Johns Hopkins University Schools of Medicine and Hygiene and Public Health, Baltimore, Maryland sought to determine whether there was an association between blood product transfusion and VTE in more than 14,000 patients who underwent colorectal cancer surgery.