What would a pediatrician like as a gift from her clients?

I would like to get her a gift but I really don't know what. I don't want to take her a basket of fruit or chocolates she is great with my kids so please give me some great gift ideas. Thanks
--------------------
Pediatricians are happiest when their brains are being stimulated by reading books. Buy her a gift card from Amazon books or Barnes & Noble book store, or something like that.
Source