欧美老妞bbwhd-欧美老妇人v片-欧美老妇b-欧美老肥熟-ass芬兰大白屁股pic-ass俄罗斯肥妇肥臀pics

人皮膚細胞（成纖維細胞，出生后）：Human fibroblasts are derived from cultured skin explants.

人皮膚細胞（成纖維細胞，Prenata）：Human fibroblasts are derived from cultured skin explants.

Human skin stratum corneum cells(人皮膚層角膜細胞), female, 68.

Human Vascular Smooth Muscle Cells(人血管平滑肌細胞)are pooled primary isolates from 250 individual human neonatal donor umbilical arteries.

Human spleen cells（人脾細胞）, female, 43, retroperitoneal tumor.