Cheong Vi Vian; Aiza Jasmin binti Zulkifli; Ahmed Naqiyuddin bin Hishamudin; Lee Fei Xian; Jaeverinna Ann Anak Henry Barry; Ong Tjun Yee; Tan Boon Chung; Nur Safinah binti Abdul Rashid Gan; Dr. Madhumita Sen; Dr. Kavita Mohandas. TO COMPARE THE COGNITIVE ABILITY OF PRECLINICAL MEDICAL STUDENTS AT DIFFERENT TIMES OF THE WORKING DAY AND CORRELATE THIS WITH THEIR MORNINGNESS-EVENINGNESS STATUS. Malaysian Journal of Medical Research 2019, 3, 29-40.