Talvez deva tentar algumas variações de ortografia:
decrease swallowing » disease swallowing (Expandir a busca), decrease following (Expandir a busca), decrease walking (Expandir a busca)
swallowing pattern » swallowing after (Expandir a busca)
decrease std » decrease sod (Expandir a busca), decrease and (Expandir a busca), decrease at (Expandir a busca)
std decrease » to decrease (Expandir a busca), and decrease (Expandir a busca), spp decrease (Expandir a busca)
in decrease » in decreased (Expandir a busca), on decrease (Expandir a busca), pain decrease (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease in decrease std decrease ) OR ( decrease NOT decrease swallowing pattern ))~.