1. Das Arteriensystem der Japaner;Adachi,1928
2. Plastic construction of the superior palpebral fold;Sayoc;Am. J. Ophth.,1954
3. Anatomy of the Human Orbit and Accessory Organs of Vision;Whitnall,1932
4. Absence of the superior palpebral fold in slit eyes: Anatomical and physiological explanation;Sayoc;Am. J. Ophth.,1956