参考文献:
Glaxosmithkline LLC Aubart, Kelly M. Benowitz, Andrew B. Fang, Yuhong Hoffman, James Karpinski, Joseph M. Knox, Andrew Nicholson Liao, Xiangmin Qin, Donghui Shi, Dongchuan Spletstoser, Jared T. Patent: US2/452 A, 2 Location in patent: Page/Page column