Miro Benčić, Mladenka Vrcić-Keglević
[USE OF CONTRACEPTION IN WOMEN FROM THE ZAPRESIĆ AREA AND FACTORS INFLUENCING THE CHOICE OF METHOD: A CROSS-SECTIONAL STUDY]
Acta medica Croatica : casopis Hravatske akademije medicinskih znanosti
significant temporal variations radon air pollutants observed room even one permanently closed windows doors therefore question arises one assess conformity room normative make reliable decision test lasts 1 year days months measurement protocol fundamentally differs europe longterm testing tradition lasting several months us shortterm tests several days common neither european american protocols considers temporal uncertainty indoor radon factor usually exceeds instrumental uncertainty including longterm tests 23 times higher coefficient variation cov commonly used estimate temporal variations problem significantly complicates creation rational harmonized iso standard time strict adhering fundamental isoiec rules within concepts measurement uncertainty conformity assessment allows control coverage probability reliability decision making within isoiec proposed criterion conformity assessment room normative short longterm measurements well statistical algorithm determining temporal uncertainty considering mode measurements duration