Aryal, NirjalaNeopane, Arun2026-03-222026-03-222015https://hdl.handle.net/20.500.14572/5331Nirjala Aryal Assistant Professor, Nepalese Army Institute of Health Sciences, Shree Birendra Hospital (Chhauni) Kathmandu Arun Neopane Associate Professor, Nepalese Army Institute of Health Sciences, Shree Birendra Hospital (Chhauni), KathmanduNAen-USArticle