* the next command ensures that newer versions of Stata can run the program
version 9.0

tempfile vitaminD irlwomen

insheet using http://staff.pubhealth.ku.dk/~linearpredictors/datafiles/VitaminD.csv, delimiter(";")

label variable vitd "Vitamin D"
label variable bmi "BMI"
label variable category "Category"
label variable country "Country"

label define categorylabel 1 "Girl" 2 "Woman"
label define countrylabel 1 "Denmark" 2 "Finland" 4 "Ireland" 6 "Poland"

label values category categorylabel
label values country countrylabel

save "`vitaminD'"

keep if (country == 4 & category == 2)
save "`irlwomen'"