RT Journal Article SR Electronic T1 The Number of Alveoli in the Terminal Respiratory Unit of Man During Late Intrauterine Life and Childhood JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 544 OP 547 DO 10.1136/adc.35.184.544 VO 35 IS 184 A1 J. L. Emery A1 A. Mithal YR 1960 UL http://adc.bmj.com/content/35/184/544.abstract AB