Doublings per day in passage 1 (*, p < 0.05) (Data presented as mean ± S.E.M.) SEHI: Suspension culture plastic, Expansion medium, High density; SELO: Suspension culture plastic, Expansion medium, Low density; TEHI: Tissue culture plastic, Expansion medium, High density; TSHI: Tissue culture plastic, Stromal medium, High density; TSLO: Tissue culture plastic, Stromal medium, Low density