The Difference Effect of Special Cervical Collar with Height of 5 cm and 6 cm to Reduce Neck Pain among Students in Karanganyar, Central Java. INDONES J MED [Internet]. 2022 Oct. 10 [cited 2026 Oct. 26];7(4):411-6. Available from: https://theijmed.com/index.php/theijmed/article/view/596