"W P Glezen" . . . "Age distribution of patients with medically-attended illnesses caused by sequential variants of influenza A/H1N1: comparison to age-specific infection rates, 1978-1989"@nl . "Age distribution of patients with medically-attended illnesses caused by sequential variants of influenza A/H1N1: comparison to age-specific infection rates, 1978-1989"@en . "3" . . "Age distribution of patients with medically-attended illnesses caused by sequential variants of influenza A/H1N1: comparison to age-specific infection rates, 1978-1989"@en . "artikull shkencor i botuar m\u00EB 01 shkurt 1991"@sq . "133" . . . . "1991-02-01T00:00:00Z"^^ . . "R D Clover" . . "Age distribution of patients with medically-attended illnesses caused by sequential variants of influenza A/H1N1: comparison to age-specific infection rates, 1978-1989"@sq . . . "W A Keitel" . "Age distribution of patients with medically-attended illnesses caused by sequential variants of influenza A/H1N1: comparison to age-specific infection rates, 1978-1989"@en . . . . "Age distribution of patients with medically-attended illnesses caused by sequential variants of influenza A/H1N1: comparison to age-specific infection rates, 1978-1989"@sq . "Age distribution of patients with medically-attended illnesses caused by sequential variants of influenza A/H1N1: comparison to age-specific infection rates, 1978-1989"@nl . "art\u00EDculu cient\u00EDficu espubliz\u00E1u en febreru de 1991"@ast . . . "Age distribution of patients with medically-attended illnesses caused by sequential variants of influenza A/H1N1: comparison to age-specific infection rates, 1978-1989"@en . "scientific article published on 01 February 1991"@en . "10.1093/OXFORDJOURNALS.AJE.A115874" . "2000847" . "\u043D\u0430\u0443\u043A\u043E\u0432\u0430 \u0441\u0442\u0430\u0442\u0442\u044F, \u043E\u043F\u0443\u0431\u043B\u0456\u043A\u043E\u0432\u0430\u043D\u0430 \u0432 \u043B\u044E\u0442\u043E\u043C\u0443 1991"@uk . . "296-304" . "R B Couch" . . . . . "wetenschappelijk artikel"@nl . "P A Piedra" . "L H Taber" . "Age distribution of patients with medically-attended illnesses caused by sequential variants of influenza A/H1N1: comparison to age-specific infection rates, 1978-1989"@sq . "im Februar 1991 ver\u00F6ffentlichter wissenschaftlicher Artikel"@de . "Age distribution of patients with medically-attended illnesses caused by sequential variants of influenza A/H1N1: comparison to age-specific infection rates, 1978-1989"@nl . . .