Study design | Observational study |
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Date of publication | Until March 31, 2015 |
Setting | Japan |
Clinic only (Hospital were excluded) | |
Methods | Coding RFEs or health problems using ICHPPC, ICHPPC-2, |
ICHPPC-2-Defined, ICPC and ICPC-2 | |
Results | Frequency of RFEs and health problems |