W. Zimmermann

Percutaneous closure of the patent foramen ovale using the HELEX® Septal Occluder: acute and long-term results in 405 patients.

S. Bertog, N. Wunderlich, H. Sievert, 2012, EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology.

Patent foramen ovale closure with the SeptRx device initial experience with the first "In-Tunnel" device.

N. Wunderlich, S. Staubach, H. Sievert, 2010, JACC. Cardiovascular interventions.

A suture not always the ideal solution: Problems encountered in developing a suture‐based PFO closure technique

N. Wunderlich, H. Sievert, N. Wilson, 2008, Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions.

New onset atrial fibrillation after patent foramen ovale closure.

N. Wunderlich, D. Steinberg, S. Staubach, 2009 .