2650513 EOAI effective orifice area index 57 2650514 EOAi effective orifice area 33 2650507 EOAI EOA index 12 2650512 EOAi effective orifice area indexed to body surface area 5 2650515 EOAI early-onset alcohol involvement 1 2650516 EOAI EOA indexed to body surface area 1