Figure 4From: A novel approach to the analysis of human growthDecomposition of the ( U 1 + F 1) fitting curve (continuous lines) into two parts: U1 (dashed-dotted lines) and “spurt” (dotted lines). (a) general population: boys (black) and girls (red on-line). (b) Noonan boys (black) and girls (red on-line).Back to article page