Here's the New Edition of the most comprehensive, up-to-date account of the normal and abnormal development of the embryo and fetus. Every chapter has been thoroughly revised to reflect new findings in research and their clinical applications. The 6th Edition now includes full-color photographs, MR and ultrasound images, and all-new 3-D figures illustrating difficult concepts, and showing the effects of drugs and viruses on the fetus and how anomalies develop.