A comparison of the efficacy of reducing the signs of ageing in the neck skin after polynucleotides injections in regimens with different dosing intervals – a case study. JoFA [Internet]. 2023 Jun. 30 [cited 2024 Nov. 19];6(1):28-45. Available from: https://jofa.ump.edu.pl/index.php/jofa/article/view/68