This title covers the topics: Nancy Bayley-Classic investigator of children's growth and development; gene modifiers: application to cystic fibrosis; precocious puberty; autism spectrum disorders; issues and advances in childhood diabetes; advances in telemedicine; paediatric laparoscopy; skeletal dysplasias; rational use of laxatives in children; primer on neonatal jaundice; attention-deficit hyperactivity disorder; cosleeping; current status of cryptorchidism; Chlamydia trachomatis infection in adolescents; and Prader-Willi syndrome.