“…Use of agrochemicals, including fertilizers, insecticides, and herbicides, is also common. Previous studies indicated that farm-related factors were positively associated with risk of NHL (Pearce and Bethwaite, 1992;Figgs et al, 1995;McDuffie et al, 2002;Chiu et al, 2004). In addition, animal husbandry is well-recognized for its increased risk of exposing a human to transmissible retroviruses, which are known to cause lymphoma (Tranah et al, 2008;Bouvard et al, 2009).…”