hafez, S. (2022). Pulmonary rehabilitation program for elderly persons recovered from COVID-19 to restore normal pulmonary function and quality of life. test, (), -. doi: 10.21608/ejnsr.2021.105489.1119
sameer hamdy hafez. "Pulmonary rehabilitation program for elderly persons recovered from COVID-19 to restore normal pulmonary function and quality of life". test, , , 2022, -. doi: 10.21608/ejnsr.2021.105489.1119
hafez, S. (2022). 'Pulmonary rehabilitation program for elderly persons recovered from COVID-19 to restore normal pulmonary function and quality of life', test, (), pp. -. doi: 10.21608/ejnsr.2021.105489.1119
hafez, S. Pulmonary rehabilitation program for elderly persons recovered from COVID-19 to restore normal pulmonary function and quality of life. test, 2022; (): -. doi: 10.21608/ejnsr.2021.105489.1119