Thank you Zhen Xu, Timothy Hall, Eli Vlaisavljevich and Fred T. Lee Jr. for quoting Cardiawave’s Non-Invasive Ultrasound Therapy (NIUT) to treat severe symptomatic calcific aortic stenosis in the article published in Taylor & Francis Group entitled “Histotripsy: the first non-invasive, non-ionizing, non-thermal ablation technique based on ultrasound”.