Autor
Betancour, K.=700 1 Ibrahim, M.
2
Harvey, C.A.
2
Vargas, B.
2
Comision Nacional Ganadera de Nicaragua, Managua (Nicaragua)
1
Dong, S.
1
Drost, M.=700 1 Thatcher, W.W.
1
Mutchler, John E.
1
Napper, Scott
1
National Institute for Occupational Safety and Health
1
Song, J.
1
Torres, W.=700 1 Reynaldo, I.
1
Usman, Magagi G.
1
Xie, Jingjing
1