Fig. 2. Comparison of in vitro FVIII:Ca) for each drug between the indoor light-exposed and light-shielded groups, during a period of 8 hours. The filled circles represent the FVIII:C in indoor light-exposed groups, while the empty rectangles represent the FVIII:C in light-shielded group. The values of P<0.0125 were considered as statistically significant on using the Bonferroni method. a)Factor VIII coagulant activity.