Talvez deva tentar algumas variações de ortografia:
decrease burden » disease burden (Expandir a busca), decrease further (Expandir a busca)
burden affect » born affect (Expandir a busca), boron affect (Expandir a busca), burden after (Expandir a busca)
decrease the » decreases the (Expandir a busca), decrease in (Expandir a busca), decrease of (Expandir a busca)
the decrease » to decrease (Expandir a busca), and decrease (Expandir a busca)
decrease akt » decrease at (Expandir a busca), decrease and (Expandir a busca), decrease after (Expandir a busca)
akt decrease » and decrease (Expandir a busca), any decrease (Expandir a busca), salt decreases (Expandir a busca)
decrease not » decrease of (Expandir a busca), decrease at (Expandir a busca), decrease on (Expandir a busca)
not decrease » to decrease (Expandir a busca), not increase (Expandir a busca), and decrease (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Caso esteja tentando utilizar os operadores booleanos, deve escrevê-los em Letras MAIÚSCULAS: (( decrease the decrease akt decrease ) OR ( decrease NOT decrease burden affect ))~.
• As palavras AND, OR e NOT pode ocasionar problemas na busca; tente utilizar as aspas: "(( decrease the decrease akt decrease ) OR ( decrease not decrease burden affect ))~".
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: (( decrease the decrease akt decrease ) OR ( decrease not decrease burden affect ))*.