Fig. 1.
Growth inhibition of HL60, U937, and KG1 cells after 72-hours incubation with ATRA, 1,25(OH)2 D3, and GM-CSF. Results shown are mean of n = 3 (HL60 & KG1) or n = 7 (U937) experiments; error bars omitted for clarity. Statistical significance: * result statistically different from control; # result statistically different from ATRA/1,25(OH)2 D3 alone, eg, ATRA versus ATRA+GM-CSF; for P values see text.