Talvez deva tentar algumas variações de ortografia:
risk decreased » risk decreases (Expandir a busca), is decreased (Expandir a busca), cross decreased (Expandir a busca)
decrease costs » decreasing costs (Expandir a busca), decreases post (Expandir a busca), disease costs (Expandir a busca)
costs decrease » loss decrease (Expandir a busca), not decrease (Expandir a busca), cells decrease (Expandir a busca)
decrease renal » decreased renal (Expandir a busca), decreases renal (Expandir a busca), decrease fetal (Expandir a busca)
decrease risk » decreased risk (Expandir a busca), increase risk (Expandir a busca), decrease in (Expandir a busca)
renal objects » real objects (Expandir a busca), metal objects (Expandir a busca), penal object (Expandir a busca)
decreased to » decreased the (Expandir a busca), decreased tgf (Expandir a busca), decreased in (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

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