“…A broad range of educational factors were associated with rural work, especially related to rural background. Both preference and actual work in rural locations were associated with having resided in rural areas during the school-age period, having graduated from a rurally located high school, or being a native of a particular (1) had no definition of rural or no description of the place characteristics where the study was done and this was not cross-referenced to an earlier study by the authors [66, 68, 69, 74-76, 78, 81, 92], or; (2) relied on respondents' own definition of rural [33-35, 37, 39, 40, 43-45, 54, 55, 73, 79, 80, 88, 89, 93, 94, 98] Facility-related Type of health facility 9 1 0 10 (14.1) Township-village health center [47,95], county or township hospital [61], community or primary or additional primary health centers, secondary hospital [67], community hospital [31,49], government rural health unit [63,64] Non-facility related Population size 2 0 0 2 (2.8) City/municipality with less than 100,000 population [65], district with < 25,000 population [42] Non-metropolitan 6 0 0 6 (8.5) Area outside the country capital and/or large city [26-29, 48, 82] Administrative unit 3 0 0 3 (4.2) Any area of county, town or village [36]; rural or farther rural [84]; township or rural county [77] One of the most rural regions in a country 2 4 4 10 (14.1) Rural relative to other areas in the country, such as: Kampong Chhnang in Cambodia, Guangxi in China [32]; Bac Giang, Lao Cai and Thai Binh in Vietnam [32,70]; Chattisgarh and Odisha in India [53,57,86,91], East Nusa Tenggara in Indonesia and Zamboanga in the Philippines [32,51,53,57,62,70,86,90] Access and/or topography 2 3 0 5 (7.0) Limited c...…”