thank you-I have a 50year old son living alone in chicago, who recently went to the emergency room with this problem. fortuantely my other son was visiting and could drive him, but living in Michigan , I worry about his being alone. I am thinking of some kind of emergency device he could use to call 911. Appreciate your response. M.H. ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn