Talvez deva tentar algumas variações de ortografia:
decrease retrieval » decrease striatal (Expandir a busca), dense retrieval (Expandir a busca), database retrieval (Expandir a busca)
retrieval process » retrieval models (Expandir a busca), removal process (Expandir a busca)
decrease rapidly » disease rapidly (Expandir a busca), decrease lipid (Expandir a busca)
rapidly decrease » rapid decrease (Expandir a busca), rapid increase (Expandir a busca), taping decrease (Expandir a busca)
decrease and » decreases and (Expandir a busca), decrease in (Expandir a busca), decrease of (Expandir a busca)
and decrease » and decreases (Expandir a busca), and decreased (Expandir a busca), and increase (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease OR decrease retrieval process ) OR ( decrease and decrease rapidly decrease ))~.