Sinchaothong, Thanet, Jantima Roongruangchai, Kajee Pilakasiri, Noppadon Sangjan, and Sompit Imjai. 2006. “Development of the Heart in 4-12 Mm Golden Hamster Embryo”. Siriraj Medical Journal 58 (6):849-52. https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/245842.