R
"","Smokers..mmHg.","Non.smokers..mmHg." "1",103,107 "2",114,101 "3",125,103 "4",118,95 "5",119,101 "6",128,98 "7",110,112 "8",98,98 "9",125,106 "10",134,113 "11",111,102 "12",114,114 "13",115,101 "14",112,94 "15",NA,NA "16",NA,NA "17",NA,NA "18",0.000305975,NA "19",0.000389071,NA