Fig. 1
From: Non-use of health care service among empty-nest elderly in Shandong, China: a cross-sectional study
Location of the study sites in Shandong province, China
Fig. 1 | BMC Health Services Research
From: Non-use of health care service among empty-nest elderly in Shandong, China: a cross-sectional study
Location of the study sites in Shandong province, China