GUR, A.; CAKMAK, F. Analgesic effects of ethyl chloride spray in venepuncture – a prospective, randomized, controlled, single-blind study. European Journal of Clinical and Experimental Medicine, [S. l.], v. 21, n. 2, p. 339–343, 2023. DOI: 10.15584/ejcem.2023.2.7. Disponível em: https://journals.ur.edu.pl/ejcem/article/view/12030. Acesso em: 28 dec. 2025.