수원야간진료: It's Not as Difficult as You Think
https://www.evernote.com/shard/s603/sh/6a652fe0-9a5a-cfef-1702-30218e531dd8/e02130775b51462ad13cc12a7802709e
Then after that bone continues to establish right up until about age 35 to 40, at which era the bone mass that a girl has will strongly determine how much at risk she could be for bone fractures in her afterwards