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- Language: English
- Year: 2015

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- Language: English
- Year: 2018

- Author: Muḥammad al-Muwayliḥī (editor), Roger Allen (editor)
- Language: English
- Year: 2015

- Author: Muḥammad al-Muwayliḥī (editor), Roger Allen (editor)
- Language: English
- Year: 2015

- Author: Ibrahim al-Koni, Roger Allen
- Language: English
- Year: 2014

- Author: Richard Wagner Roger Allen
- Language: English
- Year: 2014

Dermatology
pdf
- Author: Bernard Roger Allen MB ChB FRCP (auth.)
- Language: English
- Year: 1990

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- Language: English
- Year: 2018

- Author: Roger Allen
- Language: English
- Year: 2018

- Author: Roger Allen
- Language: English
- Year: 2007