WT (M9, M10, M16, M17) with Tg332 of 10weeks (M12 to M15); 
WT (M9, M10, M16, M17) with Tg332 of 20 weeks (M20 to M23).  
WT (M9, M10) with Tg332 of 10weeks (M12 to M15) and 
WT (M16, M17) with Tg332 of 20 weeks (M20 to M23).