Andi Jayalangkara Tanra, - and Herwina Sabaruddinx, - and Herwina Sabaruddin, - and Kristian Liaury, - and Andi Alfian Zainuddin, - and Hawaidah Hawaidah, - and Bukhari Agussalim, - and Syamsuddin Saidah, - and Lisal T. Sonny, - Effect of Adjuvant Vitamin C on Brain-Derived Neurotrophic Factor Levels and Improvement of Negative Symptoms in Schizophrenic Patients. Macedonian Journal of Medical Sciences..