GRADE
You should use this primary require media to do the assignment
https://cdn-media.waldenu.edu/2dett4d/Walden/NURS/6630/DT/week_05/index.html
other source if want to use your own but you can use this one too
PTSD_PG_Watch_January_2009.fm (psychiatryonline.org)
https://psychiatryonline.org/pb/assets/raw/sitewide/practice_guidelines/guidelines/panicdisorder.pdf
https://www.jaacap.org/action/showPdf?pii=S0890-8567%2810%2900082-1