Iurii, M., Volodymyr, Y., Vasyl, S., Oleksandr, B. and Oleh, S. 2021. Optimal management of early surgery of chronic pancreatitis. International journal of health sciences. 5, 3 (Oct. 2021), 373–385. DOI:https://doi.org/10.53730/ijhs.v5n3.1638.