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 69 papers were published in the journal, with a median time to first decision of 13 days and a median time from submission to publication of 36 days. The editors would like to express their sincere gratitude to the following reviewers for their generous contribution in 2019:
| Al-Fatimi, Mohamed | Matamá, Maria Teresa |
| Alfonso, José | Matsugo, Seiichi |
| Amaral, Helena | Matsunami, Katsuyoshi |
| Antoniotti, Sylvain | Melucci, Dora |
| Apone, Fabio | Menaa, Farid |
| Arsene, Andreea Letiţia | Merah, Othmane |
| Badea, Nicoleta | Mesnard, François |
| Bagnato, Vanderlei Salvador | Mitjans Arnal, Montserrat |
| Baki, Gabriella | Mochizuki, Shinichi |
| Barba, Clara | Mokrejš, Pavel |
| Basketter, David | Moldovan, Mirela |
| Baswan, Sudhir | Nakatsuji, Teruaki |
| Beier, Ross | Napolitano, Alessandra |
| Berardesca, Enzo | Nimse, Satish Balasaheb |
| Bogdan, Catalina | Noda, Shinji |
| Brettell, Thomas | Nowicki, Roman |
| Calorini, Lido | Panzella, Lucia |
| Celeiro, María | Park, Kyoung-Chan |
| Cernava, Tomislav | Pereira, Leonel |
| Cha, Hwa Jun | Pérez, María del Carmen |
| Chamcheu, Jean Christopher | Perugini, Paola |
| Chang, Te-Sheng | Petropoulos, Spyridon |
| Choi, Duhyung | Piccirillo, Clara |
| Cidade, Maria Teresa | Pilmane, Māra |
| Coutinho, Paula | Plonka, Przemyslaw |
| D’Amora, Ugo | Puviani, Mario |
| De Paula, Haroldo César Beserra | Qasim, Saad |
| De Totero, Daniela | Qassem, Meha |
| Delgado-Charro, M. Begoña | Quan, Taihao |
| Evans, Trefor A. | Ribeiro, Artur |
| Ezendam, Janine | Rigano, Luigi |
| Feliciani, Claudio | Rinnerthaler, Mark |
| Fölster-Holst, Regina | Ripoll, Lionel |
| Fuller, Bryan | Roberts, David |
| Fung, Ernest S. | Robinson, Deanne |
| Georgiev, Vasil | Rodrigues, Francisca |
| Goel, Peeyush N. | Rogers, George Ernest |
| Goenka, Shilpi | Roohnikan, Mahdi |
| González-Minero, Francisco José | Rua, Diego |
| Guzmán, Eduardo | Santos, Ana |
| Hall, Eric S. | Santos, Jenifer |
| Hara, Koji | Schleusener, Johannes |
| Holefors, Anna | Semenzato, Alessandra |
| Hussain, Zahir M. | Serfaty, Stéphane |
| Ishihara, Kenji | Sethi, Gautam |
| Ita, Kevin | Shim, Sehwan |
| Ito, Takamichi | Shimo, Tsuyoshi |
| Jakasa, Ivone | Shin, Hyun-Jae |
| Jeong, Se Kyoo | Sikorska, Wanda |
| Jones, Alex | Silva, Carla |
| Jones, Alex L. | Simoes, Sandra |
| Juliano, Claudia Clelia Assunta | Singh, Anil |
| Kageyama, Hakuto | Sinha, Sudarson Sekhar |
| Kendall, Alexandra | Sironi, Maurizio |
| Kim, Donguk | Sitarek, Przemysław |
| Koch, Sandra | Solano, Francisco |
| Koike, Kenzo | Sorg, Olivier |
| Kojima, Hajime | Sowa, Ireneusz |
| Kolbe, Ludger | Staderini, Edoardo |
| Krajka-Kuźniak, Violetta | Starace, Michela |
| Labrou, Nikolaos | Sugumaran, Manickam |
| Lagouri, Vasiliki | Surber, Christian |
| Lainé, Eric | Tanabe, Shihori |
| Le Tilly, Véronique | Thomas-Danguin, Thierry |
| Leijs, Marike | Tobin, Desmond |
| Lempart, Anna | Tobin, Desmond J. |
| Lin, Chih-Chien | Tolidis, Kosmas |
| Lionetti, Nicola | Tóth, Gergő |
| Lodyga-Chruscinska, Elżbieta | Van Erp, Piet |
| Lores, Marta | Vassallo, Antonio |
| Madany Mamlouk, Amir | Verardo, Vito |
| Maeda, Kazuhisa | Vincenzi, Colombina |
| Malinauskiene, Laura | Wang, Zhenping |
| Mallela, Shamroop Kumar | Wondrak, Georg |
| Manfredini, Stefano | Xiao, Perry |
| Mäntele, Werner | Yang, Chao-Hsun |
| Maria Lisa, Garavaglia | Youssefian, Leila |
| Marrelli, Mariangela | Zastrow, Leonhard |
| Marsh, Jennifer |
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