@article {225304,
	title = {Impact Of Smoking On Gingival Crevicular Fluid And Salivary Periostin Levels In Periodontitis Patients Following Non-Surgical Periodontal Therapy},
	journal = {Egyptian Dental Journal},
	volume = {68},
	year = {2022},
	pages = {2443-2456},
	author = {Maged Amira and Ali, Amal and Olfat G Shaker and Mahmoud, Enji Ahmed}
}
