**Tiberiu Marogel-Popa, Marius Chet¸a, Marina Viorela Marcu, Cristian Ionut¸ Dut¸a,˘ Florin Ioras¸ and Stelian Alexandru Borz**

Manual Cultivation Operations in Poplar Stands: A Characterization of Job Difficulty and Risks of Health Impairment

Reprinted from: *Int. J. Environ. Res. Public Health* **2019**, *16*, 1911, doi:10.3390/ijerph16111911 . . . **119**
