aDepartment of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee

bSunTech Medical, Inc., Morrisville, North Carolina

cDivision of Intramural Research, National Heart Lung and Blood Institute, Bethesda, Maryland

dIndependent Consultant, Big Canoe, Georgia, USA

eCNSystems Medizintechnik GmbH, Graz, Austria

fPhilips, Salem, New Hampshire, USA

Received 5 December 2022 Accepted 21 February 2023.

*Bruce S. Alpert retired.

Correspondence to Bruce S. Alpert, MD, 1350 Poplar Ridge Dr., Memphis, TN 38120, USA, Tel: +1 901 229 3719; e-mail: [email protected]