【医】儿童少年死亡率

death rate death rate curve enrolment rate for children of school age children life-and-death death in the pot variation in rate power of life and death matter of life and death in the article of death be in at the death in the death of winter hygiene of children and adolescents smoking in adolescents vomiting and diarrhea in children Vomiting in infants and children thinness and weakness in children acute appendicitis in infants and children death-rate rate of death actual death rate all-cause death rate