I just pulled off the relevant sections from the online secondary.
B. NON-ACADEMIC ACIVITIES. List up to six of your most valued recent non-academic activities (such as research, clinical experiences, community service, employment). Include information about hours per week and duration of involvement for each. Then select one experience and in part C, describe in a brief essay how it impacted on your decision to go into medicine.
C. ESSAY. Do not exceed 400 words.
I. FOR MSTP APPLICANTS ONLY: Write a statement indicating your career goals, including a possible field of work for the Ph.D. degree, and why you wish to be considered for this MSTP. This essay should be detailed and include your relationship to and publications resulting from the project(s).