Talvez deva tentar algumas variações de ortografia:
costs decreased » cross decreased (Expandir a busca), causes decreased (Expandir a busca), not decreased (Expandir a busca)
decrease costs » decreasing costs (Expandir a busca), decreases post (Expandir a busca), disease costs (Expandir a busca)
decrease rate » decreased rate (Expandir a busca), decreases rate (Expandir a busca), decrease at (Expandir a busca)
rate decrease » rats decreases (Expandir a busca), rate increase (Expandir a busca), and decrease (Expandir a busca)
decreased to » decreased the (Expandir a busca), decreased tgf (Expandir a busca), decreased in (Expandir a busca)
decrease hiv » decrease in (Expandir a busca), decrease their (Expandir a busca), decreased high (Expandir a busca)
hiv objects » in objects (Expandir a busca), bim objects (Expandir a busca), big objects (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease costs decreased to decrease ) OR ( decrease rate decrease hiv objects ))~.