To-day, I received a three page invoice from Heart Specialists of Lancaster - which almost made my heart stop when I anxiously perused the charges:

Since you cannot read the thumbnails without clicking on them to enlarge them, I will provide you the summary first:

See the scary TOTAL of all charges ((3 pages, 21 items) of $9,335.80? Admittedly, you cannot see that on the invoice itself, only on my home-made summary.
nonono, don't look any further yet, wait for my "denouement" on the next page!