Belemmeringen voor parodontale zorgverlening 1981

The main reason for this study was the expectation that the results might contribute to an improvement in periodontal health of populations. It was hypothesized that some of the...本研究的核心动因在于，预期其研究成果可助力改善人群牙周健康状况。本研究提出假说：部分……