▁National ▁Center ▁for ▁Health ▁Statistics , ▁V ital ▁and ▁Health ▁Statistics , ▁Series ▁ 2 1 , ▁No . ▁ 9 . ▁Washington , ▁DC : ▁US ▁Government ▁Print ing ▁Office . ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁ ▁ ▁S pi ra , ▁G . ▁( 2 0 0 8 ). ▁The ▁Boys ▁of ▁Late ▁Summer : ▁Why ▁do ▁so ▁many ▁pro ▁baseball ▁players ▁have ▁August ▁birth days ? ▁S late . ▁ ▁Sy kes , ▁E . D . A ., ▁Bell , ▁J . F ., ▁R ode iro , ▁C . V . ▁( 2 0 0 9 ) ▁B irth date ▁Effect s : ▁A ▁Review ▁of ▁the ▁Liter ature ▁from ▁ 1 9 9 0 - on . ▁University ▁of ▁Cambridge . ▁▁▁▁▁▁▁ ▁To ering ▁T . T . ▁( 2 0 1 1 ). ▁Self - reg ulation ▁of ▁learning ▁and ▁the ▁performance ▁level ▁of ▁youth ▁s occer ▁players . ▁. ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁ ▁Category : S ports ▁science ▁Category : E du c ational ▁assess ment ▁and ▁evaluation ▁Category : A cadem ia ▁Category : E p ide mi ology ▁Category : Age ism ▁Category : So cial ▁anth rop ology <0x0A> </s> ▁AR ST ▁S . p . A ., ▁known ▁also ▁ ▁as ▁A zi enda ▁Reg ionale ▁S arda ▁Tras port i , ▁is ▁a ▁public ▁company ▁responsible ▁for ▁public ▁transport ation ▁in ▁S ardin ia , ▁in ▁Italy , ▁owned ▁by ▁the ▁autonom ous ▁regional ▁administration ▁of ▁S ardin ia . ▁ ▁The ▁company ▁is ▁head qu arter ed