Effect of vacuum and non-vacuum urine collection systems on urinalysis​Berkay Korkmaz Alev Kural Ahmet Başman Bülent Ediz Abdullah Olgun a Department of Clinical Biochemistry, University of Health Sciences Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkiyeb Department of Biostatistics and Medical Informatics, Faculty of Medicine, Istinye University, İstanbul, Turkiyec Department of Biochemistry, Faculty of Pharmacy, Istinye University, Istanbul, Turkiyeon June 26, 2025 at 4:07 am