title: Incentive spirometry and PEFR in different phases of pregnancy.
authors.forename: Bilquis M A
authors.initials: BM
authors.lastname: Rasheed
authors.forename: Ather
authors.initials: A
authors.lastname: Mansoor
authors.forename: Sikander
authors.initials: S
authors.lastname: Hussain
mesh_terms: D005260:Female; D006801:Humans; D009042:Motivation; D010366:Peak Expiratory Flow Rate; D011247:Pregnancy; D011261:Pregnancy Trimester, First / Q000502:physiology; D011262:Pregnancy Trimester, Second / Q000502:physiology; D011263:Pregnancy Trimester, Third / Q000502:physiology; D013147:Spirometry / Q000295:instrumentation / Q000706:statistics & numerical data; D014797:Vital Capacity / Q000502:physiology*