If you want the kindle access, you have to email Lippincott confirmation proving you bought the Kindle version, receive the case number, and then call them at 1 (800) 468-1128. Once you connect on the customer service number, give them your case number (be ready to prove your confirmation of purchase), and then they’ll give you the access code.

https://www.amazon.com/Essentials-Nursing-Research-Appraising-Evidence/dp/1496351290