Talvez deva tentar algumas variações de ortografia:
impaired perfusion » improved perfusion (Expandir a Pesquisa), impaired perception (Expandir a Pesquisa), impaired persons (Expandir a Pesquisa)
nacl impaired » al impaired (Expandir a Pesquisa), renal impaired (Expandir a Pesquisa), focal impaired (Expandir a Pesquisa)
nail clamp » nail lamp (Expandir a Pesquisa), tail clamp (Expandir a Pesquisa), coil clamp (Expandir a Pesquisa)
gran cal » gran canal (Expandir a Pesquisa), gran casa (Expandir a Pesquisa), than cal (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
j nail » _ nail (Expandir a Pesquisa), a nail (Expandir a Pesquisa), 3 nail (Expandir a Pesquisa)
j gran » j grant (Expandir a Pesquisa), j gray (Expandir a Pesquisa), j gradin (Expandir a Pesquisa)
cal na » cal ma (Expandir a Pesquisa), bucal na (Expandir a Pesquisa), local na (Expandir a Pesquisa)
na non » dna non (Expandir a Pesquisa), rna non (Expandir a Pesquisa), na nan (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: (( 3 nacl impaired perfusion _ ) or ((( j nail clamp _ noh ) or ( j gran cal na non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( 3 nacl impaired perfusion _ ) OR ((( j nail clamp _ noh ) OR ( j gran cal na non ))))*.