[Retracted] A Study on Nonvisual Effects of Natural Light Environment in a Maternity Ward of a Hospital in Cold Area

Figure 7

Year-round distribution of Stim.freq at each measuring point (8 : 00-12 : 00): (a) measuring point A; (b) measuring point B; (c) measuring point a; (d) measuring point b; (e) measuring point c; and (f) measuring point d.

(a)

(b)

(c)

(d)

(e)

(f)