Psychosocial impact on families with an infant with a hypoplastic left heart syndrome during and after the interstage monitoring period - a prospective mixed-method study. - Stoffel, Gaby; Spirig, Rebecca; Stiasny, Brian; Bernet, Vera; Dave, Hitendu; Knirsch, Walter (Journal of Clinical Nursing (John Wiley & Sons, Inc.), 2017)