PeerJ Author 170 Points Contributions by role Author 135 Preprint Author 35 Contributions by subject area Psychiatry and Psychology Public Health Science and Medical Education Spogmai S Khan PeerJ Author Summary Psychiatry & Psychology Public Health Science & Medical Education PeerJ Contributions Articles 1 Preprints 1 March 12, 2015 Association of academic stress with sleeping difficulties in medical students of a Pakistani medical school: a cross sectional survey Ahmed Waqas, Spogmai Khan, Waqar Sharif, Uzma Khalid, Asad Ali https://doi.org/10.7717/peerj.840 PubMed 25802809 December 16, 2014 - Version: 1 Association of academic stressors with sleep disturbances in medical students: is psychological stress a mediator? Ahmed Waqas, Spogmai Khan, Waqar muhammad Sharif, Uzma khalid, Asad Ali https://doi.org/10.7287/peerj.preprints.706v1