1 Femring-Femring is inserted into the vagina and left in place for three months, after which it is removed and replaced with a fresh ring. 2  NuvaRing-NuvaRing is inserted into the vagina and left in place for three weeks, after which it is removed for a 'ring-free' week to allow menstruation to occur.orn continuously for three weeks followed by a week off, each vaginal ring provides one month of birth control. Several vaginal ring products are currently available, including: 1  Estring-a low-dose estradiol-releasing ring, manufactured from silicone elastomer, for the treatment of vaginal atrophy (atrophic vaginitis).
Feta cheese, according to the latest EU regulations, is a variety of cheese that is made in specific areas of Greece and is manufactured using sheep's milk. The cheese may also be considered âfetaâ if it is made of a mixture of sheep and goat's milk, with goat's milk being less than or equal to 30% of the entire mixture. Goat cheese, as the name suggests, is cheese prepared using goat's milk. 1 Properties.
Quora User, expert in sustainability and IT. 1  The name Gouda cheese originally comes from the cheese market in the city of Gouda in The Netherlands where cheese from the surrounding country side was traded. So the cheese wasn't made in Gouda, it was just sold there. Since the name Gouda cheese is not protected, nowadays it can come from anywhere.