Talvez deva tentar algumas variações de ortografia:
nacl impaired » al impaired (Expandir a Pesquisa), renal impaired (Expandir a Pesquisa), early impaired (Expandir a Pesquisa)
impaired toll » impaired th1 (Expandir a Pesquisa)
nagel clamp » nagel claus (Expandir a Pesquisa)
comp dan » comp can (Expandir a Pesquisa), comp da (Expandir a Pesquisa), comp das (Expandir a Pesquisa)
j nagel » e nagel (Expandir a Pesquisa), a nagel (Expandir a Pesquisa), _ nagel (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
dan non » than non (Expandir a Pesquisa), dan ning (Expandir a Pesquisa)
j nacl » _ nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa), a nacl (Expandir a Pesquisa)
j nagy » e nagy (Expandir a Pesquisa), a nagy (Expandir a Pesquisa), _ nagy (Expandir a Pesquisa)
a non » _ non (Expandir a Pesquisa)
ngoc » ngo (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: (( j nacl impaired toll ngoc ) OR ((( j nagel clamp a non ) OR ( j nagy comp dan non ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j nacl impaired toll ngoc ) OR ((( j nagel clamp a non ) OR ( j nagy comp dan non ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j nacl impaired toll ngoc ) OR ((( j nagel clamp a non ) OR ( j nagy comp dan non ))))*.