(make-instance 'usab :vcui (ensure-integer vcui)
:rcui (ensure-integer rcui) :vsab vsab :rsab rsab :son son
:sf sf :sver sver :vstart vstart :vend vend :imeta imeta
(make-instance 'usab :vcui (ensure-integer vcui)
:rcui (ensure-integer rcui) :vsab vsab :rsab rsab :son son
:sf sf :sver sver :vstart vstart :vend vend :imeta imeta