3248886 PHRs personal health records 230 3248901 PHRs Public Health Regions 7 3248887 PHRs patient health records 5 3248889 PHRs photoreceptors 5 3248896 PHRs personal health record systems 4 3248902 PHRs paper health records 3 3248900 PHRs patient-held health records 3 3248888 PHRs parastomal hernia repairs 2 3248890 PHRs peak/height ratios 2 3248904 PHRs preventable hospitalization rates 2 3248906 PHRs pseudo-homologous regions 2 3248899 PHRs patient-held medical records 1 3248891 PHRs perceived health risks 1 3248895 PHRs personal electronic health records 1 3248893 PHRs pharmaceuticals 1 3248892 PHRs phosphorus starvation response factors 1 3248894 PHRs photocatalytic hydrogen reactions 1 3248898 PHRs Physician-Hospital Relations 1 3248897 PHRs Proportionate hospitalization ratios 1 3248903 PHRs Public health medical residents 1 3248905 PHRs public health recommendations 1 3248907 PHRs putative hydrophobic regions 1