FLASH EMBRYO Embryology Cards By William Ting, MD and Ronald Homer, MD is the premier study aids for embryology. Embryology is an important part of the USMLE Boards Step I and of every health professional school curriculum; however, master embryology has long been a daunting task for students. FLASH EMBRYO is an one-of-the-kind clinically-oriented and color-coded flashcards that have helped many medical and health professional students in understanding and retaining key concepts in embryology. Embryonic and fetal developments are clearly introduced via dual-reinforcement of chronological and organ system-based presentations. Moreover, there is thorough coverage of congenital malformations caused by various etiologies.