@base . a ; "0027-8424" ; . a ; "internetarchive" ; "Internet Archive" . . a ; "clockss" ; "CLOCKSS Archive" . a ; "lockss" ; "LOCKSS Archive" . a ; "20220907114601.654201"^^ ; ; . a , ; "Proceedings of the National Academy of Sciences of the United States of America (Online)" . a ; "portico" ; "Portico" . a ; "ndpp" ; "National Digital Preservation Program, China" . a ; "hathi" ; "HathiTrust" . a . , ; "Proceedings of the National Academy of Sciences of the United States of America." ; ; ; ; ; ; ; "Proceedings of the National Academy of Sciences of the United States of America." , "Proceedings of the National Academy of Sciences of the United States of America (Online)" ; ; [ a ; "1914-2014" ; "Preserved" ; "2023-09-15"^^ ; ; [ "0027-8424" ; "Proceedings of the National Academy of Sciences of the United States of America 1915-2016" ; "National Academy of Sciences" ] ; "1914/2014" ; "https://archive.org/details/pub_proceedings-of-the-national-academy-of-sciences-usa" ] ; [ a ; "Preserved : 11, 16 to 19, 111 to 119" ; "Preserved" ; "2024-01-08"^^ ; "Preserved : 11 (Supplement_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49); 16 (Supplement_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 17 (suppl_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 18 (Supplement_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 19 (Supplement_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 111 (Supplement_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 112 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 113 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 114 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 115 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 116 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 117 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 118 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 119 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52)" ; ; [ "1091-6490" ; "Proceedings of the National Academy of Sciences (PNAS)" ; "National Academy of Sciences" ] ; "2009/2022" ] ; [ a ; "Preserved : 11, 16 to 19, 111 to 118" ; "Preserved" ; "2023-07-25"^^ ; "Preserved : 11 (Supplement_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49); 16 (Supplement_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 17 (suppl_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 18 (Supplement_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 19 (Supplement_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 111 (Supplement_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 112 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 113 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 114 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 115 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 116 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 117 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 118 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52)" ; ; [ "1091-6490" ; "Proceedings of the National Academy of Sciences (PNAS)" ; "National Academy of Sciences" ] ; "2009/2021" ] ; [ a ; "Preserved : 11, 16 to 19, 111 to 119" ; "Preserved" ; "2023-10-13"^^ ; "Preserved : 11 (Supplement_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49); 16 (Supplement_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 17 (suppl_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 18 (Supplement_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 19 (Supplement_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 111 (Supplement_1, 1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 112 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 113 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 114 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 115 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 116 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 117 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 118 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 119 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52)" ; ; [ "1091-6490" ; "Proceedings of the National Academy of Sciences (PNAS)" ; "National Academy of Sciences" ] ; "2009/2022" ] ; [ a ; "1 to 109, 111" ; "Preserved" ; "2024-03-25"^^ ; "1 to 109, 111" ; ; [ "1091-6490" , "0027-8424" ; "Proceedings of the National Academy of Sciences" ; "National Academy of Sciences" ] ; "1915/2014" ] ; [ a ; "Preserved : 1915: 1, 1916: 2, 1917: 3, 1918: 4, 1919: 5, 1920: 6, 1921: 7, 1922: 8, 1923: 9, 1924: 10, 1925: 11, 1926: 12, 1927: 13, 1928: 14, 1929: 15, 1930: 16, 1931: 17, 1932: 18, 1933: 19, 1934: 20, 1935: 21, 1936: 22, 1937: 23, 1938: 24, 1939: 25, 1940: 26, 1941: 27, 1942: 28, 1943: 29, 1944: 30, 1945: 31, 1946: 32, 1947: 33, 1948: 34, 1949: 35, 1950: 36, 1951: 37, 1952: 38, 1953: 39, 1954: 40, 1955: 41, 1956: 42, 1957: 43, 1958: 44, 1959: 45, 1960: 46, 1961: 47, 1962: 48, 1963: 49, 1963: 50, 1964: 51, 1964: 52, 1965: 53, 1965: 54, 1966: 55, 1966: 56, 1967: 57, 1967: 58, 1968: 59, 1968: 60, 1968: 61, 1969: 62, 1969: 63, 1969: 64, 1970: 65, 1970: 66, 1970: 67, 1971: 68, 1972: 69, 1973: 70, 1974: 71, 1975: 72, 1976: 73, 1977: 74, 1978: 75, 1979: 76, 1980: 77, 1981: 78, 1982: 79, 1983: 80, 1984: 81, 1985: 82, 1986: 83, 1987: 84, 1988: 85, 1989: 86, 1990: 87, 1991: 88, 1992: 89, 1993: 90, 1994: 91, 1995: 92, 1996: 93, 1997: 94, 1998: 95, 1999: 96, 2000: 97, 2001: 98, 2002: 99, 2002/2003: 100, 2004: 101, 2005: 102, 2006: 103, 2007: 104, 2008: 105, 2009: 106, 2009/2010: 107, 2010/2011: 108, 2011/2012: 109, 2012/2013: 110, 2014: 111, 2015: 112, 2016: 113, 2017: 114, 2018: 115, 2019: 116, 2020: 117, 2021: 118, 2022: 119, 2023: 120" ; "Preserved" ; "2024-03-26"^^ ; "Preserved : 1915: 1(1-12), 1916: 2(1-12), 1917: 3(1-12), 1918: 4(1-12), 1919: 5(1-12), 1920: 6(1-12), 1921: 7(1-12), 1922: 8(1-12), 1923: 9(1-12), 1924: 10(1-12), 1925: 11(1-12), 1926: 12(1-12), 1927: 13(1-12), 1928: 14(1-12), 1929: 15(1-12), 1930: 16(1-12), 1931: 17(1-12), 1932: 18(1-12), 1933: 19(1-12), 1934: 20(1-12), 1935: 21(1-12), 1936: 22(1-12), 1937: 23(1-12), 1938: 24(1-12), 1939: 25(1-12), 1940: 26(1-12), 1941: 27(1-12), 1942: 28(1-12), 1943: 29(1-11), 1944: 30(1-12), 1945: 31(1-12), 1946: 32(1-12), 1947: 33(1-12), 1948: 34(1-12), 1949: 35(1-12), 1950: 36(1-12), 1951: 37(1-12), 1952: 38(1-12), 1953: 39(1-12), 1954: 40(1-12), 1955: 41(1-12), 1956: 42(1-12), 1957: 43(1-12), 1958: 44(1-12), 1959: 45(1-12), 1960: 46(1-12), 1961: 47(1-12), 1962: 48(1-12), 1963: 49(1-6), 1963: 50(1-6), 1964: 51(1-6), 1964: 52(1-6), 1965: 53(1-6), 1965: 54(1-6), 1966: 55(1-6), 1966: 56(1-6), 1967: 57(1-6), 1967: 58(1-6), 1968: 59(1-4), 1968: 60(1-4), 1968: 61(1-4), 1969: 62(1-4), 1969: 63(1-4), 1969: 64(1-4), 1970: 65(1-4), 1970: 66(1-4), 1970: 67(1-4), 1971: 68(1-12), 1972: 69(1-12), 1973: 70(1-12), 1974: 71(1-12), 1975: 72(1-12), 1976: 73(1-12), 1977: 74(1-12), 1978: 75(1-12), 1979: 76(1-12), 1980: 77(1-12), 1981: 78(1-12), 1982: 79(1-24), 1983: 80(1-24), 1984: 81(1-24), 1985: 82(1-24), 1986: 83(1-24), 1987: 84(1-24), 1988: 85(1-24), 1989: 86(1-24), 1990: 87(1-24), 1991: 88(1-24), 1992: 89(1-24), 1993: 90(1-24), 1994: 91(1-26), 1995: 92(1-26), 1996: 93(1-26), 1997: 94(1-26), 1998: 95(1-26), 1999: 96(1-26), 2000: 97(1-26), 2001: 98(1-26), 2002: 99(1-26), 2002/2003: 100(1-26), 2004: 101(1-9, 11-52), 2005: 102(1-19, 21-23, 25-52), 2006: 103(1-52), 2007: 104(1-52), 2008: 105(1-52), 2009: 106(1-52), 2009/2010: 107(1-52), 2010/2011: 108(1-52), 2011/2012: 109(1-52), 2012/2013: 110(1-52), 2014: 111(1-52), 2015: 112(1-52), 2016: 113(1-52), 2017: 114(1-52), 2018: 115(1-52), 2019: 116(1-52), 2020: 117(1-52), 2021: 118(1-42, 44-52), 2022: 119(0-3, 5-52), 2023: 120(1-19, 21, 24, 31-32, 34-35, 37-38)" ; ; [ "1091-6490" , "0027-8424" ; "Proceedings of the National Academy of Sciences" ; "Proceedings of the National Academy of Sciences" ] ; "1915/2023" ] ; [ a ; "110, 112 to 121" ; "In Progress" ; "2024-03-25"^^ ; "110, 112 to 121" ; ; [ "1091-6490" , "0027-8424" ; "Proceedings of the National Academy of Sciences" ; "National Academy of Sciences" ] ; "2013/2024" ] ; [ a ; "v.1 (1915); v.3 (1917); v.5 (1919); v.4 (1918); v.3 (1917); v.2 (1916); v.1:4 (1915); v.1:1 (1915); v.7 (1921); v.2 (1916); v.1 (1915); v.6 (1920); v.5 (1919); v.4 (1918); v.4 (1918); v.2 (1916); v.2 (1916); v.8 (1922); v.1 (1915); v.4 (1918); v.7 (1921); v.7 (1921); v.1 (1915); v.3 (1917); v.5 (1919); v.3 (1917); v.8 (1922); v.6 (1920); v.6 (1920); v.6-7 (1920-1921); v.5 (1919); v.2 (1916); v.8 (1922); v.5 (1919); v.2 (1916); v.3 (1917); v.6 (1920); v.7 (1921); v.8 (1922); v.3 (1917); v.1 (1915); v.4 (1918); v.2 (1916); v.4 (1918); v.7 (1921); v.5 (1919); v.5 (1919); v.4 (1918); v.6 (1920); v.1 (1915); v.3 (1917); v.1 (1915); v.8 (1922); v.1 (1915); v.5 (1919); v.2 (1916); v.3 (1917); v.7 (1921); v.4 (1918); v.4-5 (1918-19); Index v.85; v.9 1923; v.10 1929; v.13 1927; v.11 1925; v.14 1928; v.6 1920; v.5 1919; v.8 1922; v.3 1917; v.1 1915; v.4 1918; v.2 1916; v.7 1921; v.12 1926; v.5; v.10; v.11" ; "Preserved" ; "2024-03-01"^^ ; "v.1 (1915); v.3 (1917); v.5 (1919); v.4 (1918); v.3 (1917); v.2 (1916); v.1:4 (1915); v.1:1 (1915); v.7 (1921); v.2 (1916); v.1 (1915); v.6 (1920); v.5 (1919); v.4 (1918); v.4 (1918); v.2 (1916); v.2 (1916); v.8 (1922); v.1 (1915); v.4 (1918); v.7 (1921); v.7 (1921); v.1 (1915); v.3 (1917); v.5 (1919); v.3 (1917); v.8 (1922); v.6 (1920); v.6 (1920); v.6-7 (1920-1921); v.5 (1919); v.2 (1916); v.8 (1922); v.5 (1919); v.2 (1916); v.3 (1917); v.6 (1920); v.7 (1921); v.8 (1922); v.3 (1917); v.1 (1915); v.4 (1918); v.2 (1916); v.4 (1918); v.7 (1921); v.5 (1919); v.5 (1919); v.4 (1918); v.6 (1920); v.1 (1915); v.3 (1917); v.1 (1915); v.8 (1922); v.1 (1915); v.5 (1919); v.2 (1916); v.3 (1917); v.7 (1921); v.4 (1918); v.4-5 (1918-19); Index v.85; v.9 1923; v.10 1929; v.13 1927; v.11 1925; v.14 1928; v.6 1920; v.5 1919; v.8 1922; v.3 1917; v.1 1915; v.4 1918; v.2 1916; v.7 1921; v.12 1926; v.5; v.10; v.11" ; ; [ "0027-8424" ; "Proceedings of the National Academy of Sciences of the United States of America." ; "National Academy of Sciences [etc.]" ] ; "1915/1929" ; "https://catalog.hathitrust.org/Record/004527919" ] ; [ a ; "v.1 1915; v.2 1916; v.3 1917; v.4 1918; v.5 1919; v.6 1920; v.7 1921; v.8 1922; v.9 1923; v.10 1924; v.11 1925; v.12 1926; v.13 1927; v.14 1928; v.10 1924; v.11 1925; v.13 1927; v.14 1928; v.12 1926; v.6 1920; v.7 1921; v.8 1922; v.9 1923" ; "Preserved" ; "2024-03-01"^^ ; "v.1 1915; v.2 1916; v.3 1917; v.4 1918; v.5 1919; v.6 1920; v.7 1921; v.8 1922; v.9 1923; v.10 1924; v.11 1925; v.12 1926; v.13 1927; v.14 1928; v.10 1924; v.11 1925; v.13 1927; v.14 1928; v.12 1926; v.6 1920; v.7 1921; v.8 1922; v.9 1923" ; ; [ "0027-8424" ; "Proceedings of the National Academy of Sciences of the United States of America." ; "National Academy of Sciences [etc.], 1915-1979." ] ; "1915/1928" ; "https://catalog.hathitrust.org/Record/000636305" ] ; [ a ; "1 to 119" ; "Preserved" ; "2024-03-25"^^ ; "1 to 119" ; ; [ "1091-6490" , "0027-8424" ; "Proceedings of the National Academy of Sciences" ; "National Academy of Sciences" ] ; "1915/2022" ] ; [ a ; "120, 121" ; "In Progress" ; "2024-03-25"^^ ; "120, 121" ; ; [ "1091-6490" , "0027-8424" ; "Proceedings of the National Academy of Sciences" ; "National Academy of Sciences" ] ; "2023/2024" ] ; "http://www.jstor.org/journals/00278424.html" , "http://www.pnas.org/" . "District of Columbia" . a ; .