Document Type : Research Articles
Authors
1 Respiratory Unit, Universiti Kebangsaan Malaysia Medical Centre, Faculty of Medicine, University Kebangsaan, Cheras, Malaysia.
2 Department of Clinical Oncology, University Technology MARA, 40450 Shah Alam, Malaysia.
3 School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Malaysia.
4 Institute for Environment and Development (Lestari), Universiti Kebangsaan Malaysia, Bangi, Malaysia.
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