Preston Hensley1, John L LaMattina2. 1. SystaMedic, 1084 Shennecossett Road, Groton, Connecticut 06340, USA, and 456 North-West Corner Road, North Stonington, Connecticut 06359, USA. 2. PureTech, Boston, Massachusetts 02116, USA, and 127 Wamphassuc Point Road, Stonington, Connecticut 06378, USA.