If you have a preferred ereader device or application, buy Side Effects and Complications from the corresponding ebook seller:
|Kindle device or app||buy from Amazon|
|Ibooks app||buy from Apple Ibook store|
|Nook device or app||buy from Barnes & Noble|
|Adobe digital editions app||buy directly from the publisher|
E.g., you cannot buy from ibook store and then read your purchase on a kindle. Here's my advice on the best ereaders.