Ashktorab, T., sayed ahmad Bathaei, S. Zohari Anbuhi, H. Alavi Majd, and J. Ezati. “Factors Contributing to Readmission of Congestive Heart Failure Patients Admitted in Internal Ward of Hospitals of Shahid Beheshti University of Medical Sciences in Tehran”. Advances in Nursing & Midwifery, vol. 20, no. 72, Feb. 2012, pp. 19-24, https://journals.sbmu.ac.ir/en-jnm/article/view/2683.