Stage of children by age neonatal period after birth 4wk perinatal period 28wk of gestation 1wk after birth infancy 4wk lyr Toddlerhood 2nd yr 3rd yr 儿学R的
neonatal period after birth～ 4wk perinatal period 28wk of gestation ～1wk after birth infancy 4wk～ 1yr Todlerhood 2nd yr ～ 3rd yr Stage of children by age
Stage of children by age preschool age 3yr~6(7)yr school age 6(7)yr~11(12)yr adolescence 11~12yr-17~18yr(fema) 13~15yr-19~21yr(male) 儿学R的
preschool age 3 yr～6(7) yr school age 6（7）yr～ 11(12)yr adolescence 11 ～ 12yr--17 ～ 18yr(femal) 13 ～ 15yr---19 ～ 21yr(male) Stage of children by age
<18yr in total population of children and adult developed countries 22,4% developing countries 35,7%0 china 30% (UNCF1999) <18yr 400 million china) 儿学R的
❖ <18yr in total population of children and adult developed countries 22.4% developing countries 35.7% china 30% ( UNCF 1999 ) ❖ <18yr 400 million( china)
Disparity in occurrence and progression of disease between children and adult 8 disparity in anatomy, physiology, and immunologic function between children and adult o the younger, the more different 儿学R的
Disparity in occurrence and progression of disease between children and adult ❖ disparity in anatomy, physiology, and immunologic function between children and adult. ❖ the younger, the more different
(9) 45 RV 45352 LV 5 7天2天46月72456101-156-20岁 左右心室发育 心学