Talvez deva tentar algumas variações de ortografia:
active systemic » acute systemic (Expandir a Pesquisa)
patient active » patients active (Expandir a Pesquisa), patient activated (Expandir a Pesquisa), patients actively (Expandir a Pesquisa)
systemic dose » systemic doses (Expandir a Pesquisa), systematic dose (Expandir a Pesquisa), systemic dnase (Expandir a Pesquisa)
absent nerve » bent nerve (Expandir a Pesquisa), abducent nerve (Expandir a Pesquisa), augment nerve (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa)
17 absent » 1 absent (Expandir a Pesquisa), _ absent (Expandir a Pesquisa), c1 absent (Expandir a Pesquisa)
j patient » 4j patients (Expandir a Pesquisa), j pariente (Expandir a Pesquisa), j patino (Expandir a Pesquisa)
nerve i » nerve _ (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
j cent » a cent (Expandir a Pesquisa), i cent (Expandir a Pesquisa), j center (Expandir a Pesquisa)
i due » _ due (Expandir a Pesquisa), i die (Expandir a Pesquisa), 2 due (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 cent nerve i due ) or ((( 17 absent nerve i due ) or ( j patient active systemic dose ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j cent nerve i due ) OR ((( 17 absent nerve i due ) OR ( j patient active systemic dose )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j cent nerve i due ) or ((( 17 absent nerve i due ) or ( j patient active systemic dose ))))*.