title: Interpretation of temporal variation in patterns of birth.
authors.forename: P M
authors.initials: PM
authors.lastname: Rothwell
mesh_terms: D003093:Colitis, Ulcerative / Q000453:epidemiology; D003627:Data Interpretation, Statistical; D036861:Delivery, Obstetric; D003922:Diabetes Mellitus, Type 1 / Q000453:epidemiology; D004812:Epidemiologic Methods; D005260:Female; D006111:Graves Disease / Q000453:epidemiology; D006801:Humans; D008457:Measles / Q000453:epidemiology; D011247:Pregnancy; D012409:Rubella / Q000453:epidemiology; D013997:Time Factors