{{cite journal | last1=Nimra | first1=A. | author2=Z. Ali | author3=M. N. Khan | author4=T. Gulshan | author5=S. Sidra | author6=J. R. Gardezi | author7=M.R. Tarar | author8=M. Saleem | author9=Z. A. Nasir | author10=I. Colbeck | year=2015 | title=COMPARATIVE AMBIENT AND INDOOR PARTICULATE MATTER ANALYSIS OF OPERATION THEATRES OF GOVERNMENT AND PRIVATE (TRUST) HOSPITALS OF LAHORE, PAKISTAN | journal=Journal of Animal and Plant Sciences | volume=25 | issue=3 | pages=362-369 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2015-JAPS-656}}