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Forty-six cases of nasopharyngeal carcinoma treated with 50 Gy radiotherapy plus hematoporphyrin derivative: 20 years of follow-up and outcomes from the Sun Yat-sen University Cancer Center

Crossref DOI link: https://doi.org/10.1186/s40880-016-0098-y

Published Online: 2016-04-07

Published Print: 2016-12

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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