Talvez deva tentar algumas variações de ortografia:
acidentes cerebrovascular » acidente cerebrovascular (Expandir a Pesquisa), acidentes cerebrovasculares (Expandir a Pesquisa), accidente cerebrovascular (Expandir a Pesquisa)
cerebrovascular en » cerebrovascular _ (Expandir a Pesquisa), cerebrovascular events (Expandir a Pesquisa), cerebrovascular accident (Expandir a Pesquisa)
pediatrie cancer » pediatric cancer (Expandir a Pesquisa), pediatric cancers (Expandir a Pesquisa), paediatric cancer (Expandir a Pesquisa)
en pediatrie » en pediatria (Expandir a Pesquisa), de pediatrie (Expandir a Pesquisa)
cancer saran » cancer samrai (Expandir a Pesquisa), cancer sera (Expandir a Pesquisa), cancer san (Expandir a Pesquisa)
i acidentes » e acidentes (Expandir a Pesquisa), a acidentes (Expandir a Pesquisa), 3 acidentes (Expandir a Pesquisa)
anna* » ann* (Expandir a Pesquisa), ana* (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Performing a fuzzy search may retrieve terms with similar spellings: i acidentes cerebrovascular en pediatrie cancer saran anna~.