Ovelar Pereira RD. Teacher beliefs and attitudes regarding the human papillomavirus vaccine. Public school. Paraguay 2016. Rev. cient. estud. investig. [Internet]. 2017 Sep. 30 [cited 2026 Nov. 10];6(1):41-50. Available from: https://revista.unibe.edu.py/index.php/rcei/article/view/4