Talvez deva tentar algumas variações de ortografia:
antigen processing » antigen presenting (Expandir a busca)
increase antigen » increase active (Expandir a busca), increase nitrogen (Expandir a busca), increases mitogen (Expandir a busca)
decrease rate » decreased rate (Expandir a busca), decreases rate (Expandir a busca), increase rate (Expandir a busca)
rate increase » the increase (Expandir a busca), and increase (Expandir a busca), an increase (Expandir a busca)
decrease to » decreased to (Expandir a busca), decrease toc (Expandir a busca), decrease the (Expandir a busca)
decrease at » decrease akt (Expandir a busca), decrease and (Expandir a busca), decrease in (Expandir a busca)
at decrease » rate decrease (Expandir a busca), that decrease (Expandir a busca), and decrease (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease rate increase antigen processing ) OR ( decrease to decrease at decrease ))~.