title: Dark fingernails.
authors: (Corresponding author) MBBS, MRCP Department of Internal Medicine, International Medical University, Jalan Rasah, 70300 Seremban, Negeri Sembilan Darul Khusus, Malaysia. Email: vaani_valerie@imu.edu.my.
authors: V V
authors: VV
authors: Visuvanathan
authors: MBBS, BSc (Hons), MMed Department of Internal Medicine, International Medical University, Jalan Rasah, 70300 Seremban, Negeri Sembilan Darul Khusus, Malaysia. Email: kweechoy_koh@imu.edu.my.
authors: K C
authors: KC
authors: Koh
keywords: Zodivudine; longitudinal melanonychia; melanonychia