I've updated this Meetup. For more details, see the full listing:
http://achalasia.meetup.com/104/calendar/10857491/When: September 6,[masked]:00 PM
Where:
Marriott Hotel
Park Lane
London
RSVP limit: 10 "Yes" and "Maybe" RSVPs
If the changes affect your plans to attend, please take a moment to update your RSVP. (You can RSVP "No" or "Maybe" as well as "Yes".)
You can always get in touch with me through the "Contact Organizer" link on Meetup:
http://achalasia.meetup.com/104/suggestion/