Sihombing HI. Implementation Of The Semi Fowler Position To Improve The Effectiveness Of Breathing Patterns In Congestive Heart Failure (CHF) Patients At Vita Insani Pematangsiantar Hospital. COVID-19 [Internet]. 2024 Sep. 21 [cited 2025 Dec. 21];2(01):30-6. Available from: https://jurnal.devitara.or.id/index.php/sehat/article/view/113