I've been reading your blog for ages now, Tom, but I've never been moved to write before. I really like the way you've presented this info. Maybe I'm biased, as this post was ironically well timed for me; my dad had a (thankfully mild) heart attack a couple of weeks ago and I've been hankering for all the information I can get. I wrote about it in my blog last week (not that anyone reads it, but) like someone said earlier, if it makes someone else reach for the phone when they get a "twinge" that won't go away, then all the better. Emma