Finally, I have heard from Stanford. They invited me to the supplementary. There is one essay for MD application and one for MSTP application. The space given is short. Only two paragraphs for MD question and perhaps three paragraphs for MSTP.
Here are the questions.
8. The Committee on Admissions regards the diversity of an entering class as an important factor in serving the educational mission of the school. Although answering this question is optional, the Committee on Admissions strongly encourages you to share unique, personally important, and/or challenging factors in your background, such as the quality of your early educational environment, socioeconomic status, culture, race, ethnicity, or life or work experiences.
Please: a) discuss how such factors have influenced your goals and preparation for a career in medicine, and b) describe in detail (to the extent not included in previous answers) your involvement in campus or off-campus activities, paid or unpaid, in terms of community service, assumption of leadership roles, activities related to the care of others, etc.
(Please limit answer to 25 lines of text.)
Describe how experiences in scholarly projects (thesis, research or field study in basic or clinical science, or in the humanities) have led you to seek joint MD/PhD training. We are particularly interested in the level at which you participated in the design/direction of the project. Limit information to this page.
Hope you guys good luck.