Talvez deva tentar algumas variações de ortografia:
direct peroral » direct oral (Expandir a Pesquisa)
curran nerve » current nerve (Expandir a Pesquisa), curran george (Expandir a Pesquisa), curran pierce (Expandir a Pesquisa)
peroral case » personal case (Expandir a Pesquisa), personal cases (Expandir a Pesquisa), cerebral case (Expandir a Pesquisa)
crest nerve » treat nerve (Expandir a Pesquisa), crest derived (Expandir a Pesquisa), current nerve (Expandir a Pesquisa)
nerve cyst » nerve cat (Expandir a Pesquisa), nerve system (Expandir a Pesquisa)
j curran » j currie (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
j direct » j director (Expandir a Pesquisa), nhj direct (Expandir a Pesquisa)
cyst d » cyst _ (Expandir a Pesquisa), cyst a (Expandir a Pesquisa), cyst e (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( _ crest nerve cyst d ) OR ( j curran nerve case dis ))) OR ( j direct peroral case due ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( _ crest nerve cyst d ) or ( j curran nerve case dis ))) or ( j direct peroral case due ))*.