[Coverage of preventive educational programs in secondary schools].
Armengol
R
R
Ballestín
M
M
Nebot
M
M
Torralba
L
L
Villalbí
J R
JR
D003479:Curriculum; D006266:Health Education / Q000458:organization & administration*; D006801:Humans; D012574:Schools; D013030:Spain