Talvez deva tentar algumas variações de ortografia:
decrease faster » decrease after (Expandir a busca), decrease further (Expandir a busca), decreased after (Expandir a busca)
faster decrease » rate decrease (Expandir a busca)
decrease risk » decreased risk (Expandir a busca), increase risk (Expandir a busca), decrease hiv (Expandir a busca)
risk decrease » risk decreases (Expandir a busca), risk increase (Expandir a busca), break decrease (Expandir a busca)
decrease its » decreases its (Expandir a busca), decrease with (Expandir a busca), increase its (Expandir a busca)
its decrease » with decrease (Expandir a busca), nts decreases (Expandir a busca), to decrease (Expandir a busca)
stem » step (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease risk decrease its decrease ) OR ( decrease faster decrease in stem ))~.