TY - JOUR T1 - Correspondence: A source of tension ? JF - Archives of disease in childhood - Education & practice edition JO - Arch Dis Child Educ Pract Ed SP - 112 LP - 112 DO - 10.1136/archdischild-2017-314379 VL - 103 IS - 2 AU - Andrew Chapman AU - Elizabeth Ivey AU - Pramod Mainie Y1 - 2018/04/01 UR - http://ep.bmj.com/content/103/2/112.1.abstract N2 - Dr Williams’ case study of tension pneumothorax in a 4-day-old 25-week gestation neonate provides a clear and succinct radiological revision of this life-threatening presentation.1 We would like to raise a query in relation to the position of … ER -