Key references: Considerations for systemic MHT in perimenopause

Bromberger JT, Epperson CN. Depression during and after the perimenopause: impact of hormones, genetics, and environmental determinants of disease. Obstet Gynecol Clin North Am 2018;45(4):663–78. https://www.ncbi.nlm.nih.gov/pubmed/30401549
Maki PM, Henderson VW. Hormone therapy, dementia, and cognition: the Women's Health Initiative 10 years on. Climacteric 2012;15(3):256–62. https://www.ncbi.nlm.nih.gov/pubmed/22612612
Sitruk-Ware R. The levonorgestrel intrauterine system for use in peri- and postmenopausal women. Contraception 2007;75(6 Suppl):S155–60. https://www.ncbi.nlm.nih.gov/pubmed/17531609
The North American Menopause Society (NAMS) Advisory Panel. The 2017 hormone therapy position statement of The North American Menopause Society. Menopause 2017;24(7):728–53. https://www.ncbi.nlm.nih.gov/pubmed/28650869