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Summarized cases within each calendar month during 1977–2016 (occurrence of deep vein thrombosis, pulmonary embolism, provoked venous thromboembolism, unprovoked venous thromboembolism, splanchnic vein thrombosis) and 1994–2016 (occurrence of cerebral vein thrombosis and retinal vein thrombosis), adjusted for the length of month with a fitted sine curve and 95% confidence band.
