Implementation of guideline-directed medical treatment for ischemic heart disease management: A knowledge, attitude and practice based cross-sectional survey - Umm-e- Kalsoom; Amjad Khan; Syed Sikandar Shah; Ayesha Iqbal; Tahir Mehmood; Syed Mansoor Ahmed; Noshed Khan; Yu Fang (PLoS ONE, 2026)