Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Menstrual cycle length inputs and outputs. Several biological, environmental, lifestyle, and life history inputs (solid lines) that are known to affect MCL were used as search terms. Output conditions (dotted lines), of which MCL was considered an indicator or predictor, were not included as search terms. Created with BioRender.com. MCL, menstrual cycle length.
