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Riyoko Niwa
Riyoko Niwa
Medicine
Histopathology
Pathology
Cytology
Lymph node
3
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2024
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A Case of Ewing’s Sarcoma Arising in the Cervical Spine with an Elevation of Serum ProGRP
2021
Open Journal of Pathology
Ryogo Aoki
Yoshikazu Ikoma
Asuka Ohashi
Riyoko Niwa
Fumumasa Etori
Masashi Matsuyama
Akane Onogi
Naoki Watanabe
Takuji Tanaka
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A Japanese case of amoebic meningoencephalitis initially diagnosed by cerebrospinal fluid cytology
2020
Clinical Case Reports
Ryogo Aoki
Toshimasa Sakakima
Asuka Ohashi
Riyoko Niwa
Masashi Matsuyama
Fumimasa Etori
Naoki Watanabe
Kenji Yagita
Takuji Tanaka
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Report of Seven Cases of Langerhans Cell Histiocytosis in a Single Hospital in Japan
2019
Journal of Medical Cases
Takuji Tanaka
Riyoko Niwa
Fumimasa Etori
Asuka Ohashi
Ryogo Aoki
Naomi Kawaguchi
Toshimasa Sakakima
Rina Miyamae
Masashi Matsuyama
Naoki Watanabe
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