In 2003 Rishi was the guide for a research trip to lobuje (5000m).I did my PHD on sleep and breathing at high altitude studying 20 people over 3 trek in the khumbu .sleep studied were
Dr.Pamela Johnson ( pamel.jonson@sydney.edu.au )
I thought I'd done sufficient homework before I left the UK. Thought the choice of trekking agency would be easy but