The editorial team greatly appreciates the reviewers who have dedicated their considerable time and expertise to the journal’s rigorous editorial process over the past 12 months, regardless of whether the papers are finally published or not. In 2019, a total of 34 papers were published in the journal, with a median time to first decision of 18 days and a median time from submission to publication of 42 days. The editors would like to express their sincere gratitude to the following reviewers for their generous contribution in 2019:
| Abdel-Tawab, Mona | Länger, Reinhard |
| Almoazen, Hassen | Lau-Cam, Cesar A. |
| Amarowicz, Ryszard | Layek, Buddhadev |
| Anand, Swati | Lecourt, Thomas |
| Antal, Diana | Lee, Jong Bong |
| Atobe, Masakazu | Lei, Wei |
| Bochenek, Tomasz | Lima, Rita de Cássia Lemos |
| Bonnet, Veronique | Lins, Laurence |
| Boris, Pejin | Liu, Yijing |
| Bosnea, Loulouda | Lucarini, Massimo |
| Botubol-Ares, Jose Manuel | Manca, Maria Letizia |
| Bracco, Enrico | Manner, Suvi |
| Brégier, Frédérique | Marwarha, Gurdeep |
| Brogi, Simone | Mascini, Macello |
| Cardoso, Susana | Masłyk, Maciej |
| Carradori, Simone | Mastinu, Andrea |
| Carullo, Gabriele | Masu, Hyuma |
| Castñeiras, Alfonso | Matsuda, Hisashi |
| Ceranowicz, Piotr | May, Eric R. |
| Cerón-Carrasco, José Pedro | McHugh, Kevin |
| Cerra, Bruno | Menaa, Farid |
| Chen, Jun | Menon, Manoj |
| Chen, Ying | Miroslaw, Barbara |
| Cheng, Juei-Tang | Mohammed, Yousuf |
| Cione, Erika | Montenegro, Lucia |
| Córdoba, Manuel | Nguyen, Quang D. |
| Czerwińska, Monika | Niemirowicz-Laskowska, Katarzyna |
| Dash, Ranjeet | Nitulescu, Mihai |
| Dijkstra, Bauke W. | Nociari, Marcelo |
| Dimitrellou, Dimitra | Obata, Yasuko |
| Dinu-Pirvu, Cristina-Elena | Oćwieja, Magdalena |
| Domínguez Álvarez, Enrique | Ohyama, Kaname |
| Donadel, Giulia | Olaru, Octavian Tudorel |
| Duarte, Noélia | Oliveira, Andreia |
| Durazzo, Alessandra | Patel, Nibedita |
| Dziadas, Mariusz | Petrakis, Eleftherios |
| Eller, Gernot | Pirola, Luciano |
| Fang, Cheng | Radominska-Pandya, Anna |
| Fang, SungSoon | Ragno, Rino |
| Fonte, Pedro | Ragusa, Andrea |
| Franceschinis, Erica | Ramakumar, Kinthada |
| Geronikaki, Athina | Rescifina, Antonio |
| Giner Pons, Rosa M. | Rosado, Catarina |
| Giuffrè, Angelo Maria | Rudnicka, Wiesława |
| Gong, Hua | Salanţă, Liana Claudia |
| Gonzalez-Ochoa, Guadalupe | Salazar, Gloria |
| Guillemin, Jean-Claude | Sanz-Paris, Alejandro |
| Hashidzume, Akihito | Sardu, Celestino |
| Hassan, Sherif T. S. | Saurina, Javier |
| He, Hongliang | Shanmugam, Muruganandan |
| Herráez-Hernández, Rosa | Shikov, Alexander N. |
| Ho, Wing Shing | Silva, Amelia M |
| Hsieh, Chang-Wei | Sinha, Abhijeet |
| Iatrou, Hermis | Sogawa, Chiharu |
| Ionescu, Mihaela Ileana | Soural, Miroslav |
| Ionut, Ioana A. | Sreerama, Subramanya |
| Ita, Kevin | Stringaro, Annarita |
| Iwanicki, Adam | Tang, Peter H. |
| Jara Palacios, María José | Tao, Kai |
| Jindrich, Jindrich | Telukutla, Srinivasa Reddy |
| Joyasawal, Sipak | Terekhova, Irina V. |
| Jung, Seunho | Tien, Lu-Tai |
| Kalia, Yogeshvar N. | Tunesi, Marta |
| Kalwat, Michael A. | Tyliszczak, Bożena |
| Kawakami, Susumu | Vergara, Daniele |
| Keisaku, Sato | Volkova, Elena G. |
| Khairullina, Veronika | Vostinaru, Oliviu |
| Khoddami, Ali | Wagemaker, Tais Aleriana Lucon |
| Kim, Il Won | Waldmeier, Felix |
| Kim, Songmun | Wang, Chao-Min |
| Klimov, Dmitry I. | Wang, Wentian |
| Koike, Kenzo | Wibowo, David |
| Koirala, Niranjan | Yallapu, Murali |
| Kotsuchibashi, Yohei | Yatoh, Shigeru |
| Kowalczewski, Przemysław | Yen, Feng-Lin |
| Krenn, Assoc. Prof. Liselotte | Yurovskaya, Marina A. |
| Król-Kilińska, Żaneta | Zakłos-Szyda, Malgorzata |
| Kuncová, Gabriela | Zhong, Wei-Zhu |
| Kung, Chin-Ping | Zoltan-Istvan, Szabo |
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