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We read with interest the paper by O'Shea et al.1 Faces of preterm infants were photographed and analysed by using a software; they then were compared with the size of the most commonly available face masks (Laerdal 0/0 and Fisher&Paykel Infant Resuscitation Masks ‘small’ and ‘extra small’). Authors concluded that the smallest size of some brands of mask is …
Competing interests None declared.
Provenance and peer review Not commissioned; internally peer reviewed.