AUTHOR=Jernelöv Susanna , Pallesen Ståle , Bjorvatn Bjørn 

TITLE=Editorial: Insomnia: A Heterogenic Disorder Often Comorbid With Other Disorders and Diseases

JOURNAL=Frontiers in Psychology

VOLUME=12

YEAR=2021

URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2021.758189

DOI=10.3389/fpsyg.2021.758189

ISSN=1664-1078