“…Figure 4 shows the dose-response relation between maternal smoking during pregnancy and birth defects in children. Sixty studies 6,7,8,9,11,12,16,21,24,32,43,44,47,48,49,51,57,58,64,65,69,74,80,82,85,88,89,90,91,92,99,100,101,103,104,107,108,113,115,119,121,122,123,124,132,135,144,150,151,157,163,…”