Looser, R R; Metzenthin, P; Helfricht, S; Kudielka, B M; Loerbroks, A; Thayer, J F; Fischer, J E (2010). Cortisol is significantly correlated with cardiovascular responses during high levels of stress in critical care personnel. Psychosomatic Medicine, 72(3):281-289.
Helfricht, S; Landolt, M A; Moergeli, H; Hepp, U; Wegener, D; Schnyder, U (2009). Psychometric evaluation and validation of the German version of the Acute Stress Disorder Scale across two distinct trauma populations. Journal of Traumatic Stress, 22(5):476-480.
Latal, B; Helfricht, S; Fischer, J E; Bauerfeld, U; Landolt, M A (2009). Psychological adjustment and quality of life in children and adolescents following open-heart surgery for congenital heart disease: a systematic review. BMC Pediatrics, 9:6.
Helfricht, S; Latal, B; Fischer, J E; Tomaske, M; Landolt, M A (2008). Surgery-related posttraumatic stress disorder in parents of children undergoing cardiopulmonary bypass surgery: a prospective cohort study. Pediatric Critical Care Medicine, 9(2):217-223.