Fig. 1From: Perinatal probiotic supplementation in the prevention of allergy related disease: 6 year follow up of a randomised controlled trialParticipant flow diagram. The exact number of women who were invited and or assessed for eligibility is not available. aSeveral children were lost to both questionnaire and examination follow-up as displayed at the bottom of this box. bNumber of participants who moved from the Trondheim municipality was estimated from public address cataloguesBack to article page