APA

Asker S., Ozbay B., Ekin S., Yildiz H. & Sertogullarindan B. (20170103). Two-year survival of severe chronic obstructive pulmonary disease subjects requiring invasive mechanical ventilation and the factors affecting survival. : JPMA. The Journal of the Pakistan Medical Association.

Chicago

Asker Selvi, Ozbay Bulent, Ekin Selami, Yildiz Hanifi and Sertogullarindan Bunyamin. 20170103. Two-year survival of severe chronic obstructive pulmonary disease subjects requiring invasive mechanical ventilation and the factors affecting survival. : JPMA. The Journal of the Pakistan Medical Association.

Harvard

Asker S., Ozbay B., Ekin S., Yildiz H. and Sertogullarindan B. (20170103). Two-year survival of severe chronic obstructive pulmonary disease subjects requiring invasive mechanical ventilation and the factors affecting survival. : JPMA. The Journal of the Pakistan Medical Association.

MLA

Asker Selvi, Ozbay Bulent, Ekin Selami, Yildiz Hanifi and Sertogullarindan Bunyamin. Two-year survival of severe chronic obstructive pulmonary disease subjects requiring invasive mechanical ventilation and the factors affecting survival. : JPMA. The Journal of the Pakistan Medical Association. 20170103.