Evidence based practice relies in  1 the nurse’s clinical expertise 2. Patients

Evidence based practice relies in 
1 the nurse’s clinical expertise
2. Patients

Evidence based practice relies in 
1 the nurse’s clinical expertise
2. Patients needs 
3.formal evidence
Which of the three in your opinion is the most important? Why do you believe this? 
Justify your answer with peer-reviewed evidence. Do not use.coms or website Instead use journal articles or books.