please check the instruction and must use these links for searching:
https://www.ebscohost.com/nursing/products/cinahl-databases
https://www.ebscohost.com/nursing/products/medline-databases
cinahl and medline are must to use, free trials will give you an access for short time, you can try also netting the evidence and google scholar to check if there is some research on this topic which is about factors that influence the communication among health care providers.
