RT Journal Article SR Electronic T1 Prostatic calcification in a 4-year-old boy JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 407 OP 407 DO 10.1136/adc.56.5.407-b VO 56 IS 5 A1 Grant, David B YR 1981 UL http://adc.bmj.com/content/56/5/407.3.abstract AB