[1]
R. U. RAYHAN, Y. ZHENG, E. UDDIN, C. TIMBOL, O. ADEWUYI, and J. N. BARANIUK, “Administer and collect medical questionnaires with Google documents: a simple, safe, and free system”, Appl Med Inform, vol. 33, no. 3, pp. 12–21, Sep. 2013.