Fig. 3From: Characterisation of sucking dynamics of breastfeeding preterm infants: a cross sectional studyNipple diameters plotted at different positions of the nipple (2, 5, 10 and 15 mm) for the breastfeeds with a nipple shield (grey lines; n = 32) and without a shield black lines; n = 6). Continuous lines represent nipple diameter when the tongue is up and dotted lines when the tongue is downBack to article page