title: Menses and duration of cycles.
authors.forename: L
authors.initials: L
authors.lastname: Hanna
mesh_terms: D018791:CD4 Lymphocyte Count; D005260:Female; D015658:HIV Infections / Q000276:immunology / Q000378:metabolism*; D006801:Humans; D008597:Menstrual Cycle / Q000276:immunology / Q000378:metabolism*