The Slovak Retail Association (ZO SR) has called for all stores -- those selling both food and non-food items -- to be reopened under strict hygiene conditions, ZO president Martin Katriak told a news conference held on Monday, with ZO vice-president Pavol Konstiak in attendance. "The Retail Association is calling for all outlets to be opened, food and non-food ones, under the conditions that have been set for currently open stores, i.e. 15 square metres per customer," Katriak said.