Fortmann C., Göen T., Krüger M., Ure B. M., Petersen C., Kübler J. F. - October 12, 2017, Hyun-Sung Lee, Baylor College of Medicine, USA - Comparative study on 20 young patients with unoperated pectus excavatum and 20 others treated by Nuss technique. When metal bars were removed after 3 years, she noticed an abnormally high level of nickel and chromium in blood and urine. Three years after the bars removal, she still finds high levels of these same metal particles.
