Fig. 3From: Experimental folate deficiency in human subjects: what is the influence of vitamin C status on time taken to develop megaloblastic anaemia?Comparison of times taken to develop folate deficiency. Derived from Herbert [1] and Golding [10]. a Serum folate versus time. b Red-cell folate versus time. The dotted lines in a and b are the minimum normal values according to Bates and Lewis [47]Back to article page