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Menstrual irregularities and vaginal bleeding after COVID-19 vaccination reported to v-safe active surveillance, USA in December, 2020–January, 2022: an observational cohort study - The Lancet Digital Health
jagdisha.com - Light periods are menstrual periods that have an unusually light flow or a very short duration of blood loss. A lighter period than normal can be caused by many things,
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Real-world menstrual cycle characteristics of more than 600,000 menstrual cycles | npj Digital Medicine
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