Farooq, Muhammad, Sheraz Saleem, Zafar Niaz, Qamar Rafique, & Sajid Abaidullah. " The Study of FEV1, FVC and FEV1/FVC in Type 1 Diabetes Mellitus and their Correlation with Duration of Type 1 Diabetes Mellitus." Annals of King Edward Medical University [Online], 23.3 (2017): n. pag. Web. 24 Nov. 2017