Talvez deva tentar algumas variações de ortografia:
first observed » first served (Expandir a Pesquisa), direct observed (Expandir a Pesquisa), from observed (Expandir a Pesquisa)
observed cyst » observed cost (Expandir a Pesquisa), observed case (Expandir a Pesquisa), observed crista (Expandir a Pesquisa)
serve cystic » nerve cystic (Expandir a Pesquisa), series cystic (Expandir a Pesquisa), sero cystic (Expandir a Pesquisa)
cystic ducts » cystic duct (Expandir a Pesquisa), cystic ductal (Expandir a Pesquisa)
genes serve » genes server (Expandir a Pesquisa), genes serves (Expandir a Pesquisa), genes series (Expandir a Pesquisa)
13 first » 1 first (Expandir a Pesquisa), 19 first (Expandir a Pesquisa), 11 first (Expandir a Pesquisa)
j genes » j gene (Expandir a Pesquisa), j genesca (Expandir a Pesquisa), vdj genes (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: (( 13 first observed cyst d ) OR ( j genes serve cystic ducts ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( 13 first observed cyst d ) or ( j genes serve cystic ducts ))*.