Fig. 1From: Fecundity and human birth seasonality in Sweden: a register-based studySeasonal variation in births in Sweden by year. (error bars are 95% CI). N = 6,768,810. Reprinted from Dahlberg and Andersson. Changing Seasonal Variation in Births by Sociodemographic Factors: A Population-Based Register Study. Human Reproduction Open. 2018 [4] by permission of Oxford University Press/Human Reproduction OpenBack to article page