"Chiang Rai Medical Journal" has stepped into its 15th year, 1st issue January-April,2023, which is considered a festival celebrating both the Happy New Year and the Songkran Festival. Therefore, I would like to wish you all a blissful new year. Hope that joy and success follow you in every sector of life.

This edition of "Chiang Rai Medical Journal" contains 14 articles, 12 original articles, special articles, and case reports. The content is still an interesting article, and believes that it will be of great benefit to readers and those who are interested.

"Chiang Rai Medical Journal" would like to thank all authors for choosing submitting articles for publication. Thanks, the reviewer, for taking the time to intensively assess the submitted articles and to give comments to improve the article's quality even better before publication.

Lastly, I am grateful for the Chiang Rai Prachanukroh Hospital Board of Directors support and encourages the preparation of continuous journals every year. Including truly appreciate everyone's efforts in the editorial team. to create and improve the quality of journals. I sincerely hope that Chiang Rai Medical Journal will forever be an academic journal alongside the public health community.