Google Books Ngram Viewer

Graph these comma-separated phrases:
case-insensitive
between and from the corpus with smoothing of .  
Search in Google Books:

1930 - 1979 1980 - 1995 1996 - 1997 1998 1999 - 2000 newborn screening English
1930 - 1971 1972 - 1990 1991 - 1993 1994 - 1996 1997 - 2000 pku English
1930 - 1954 1955 - 1988 1989 - 1992 1993 - 1996 1997 - 2000 metabolic disorders English

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