Orthodox Jews of Eastern European background usually wait for six hours,[91] although those of German ancestry traditionally wait for only three hours,[92] and those of Dutch ancestry have a tradition of waiting only for the one hour. The medieval tosafists stated that the practice does not apply to infants,[93] but 18th and 19th-century rabbis, such as Abraham Danzig and Yechiel Michel Epstein, criticised those who followed lenient practices that were not traditional in their region.[94][95] In the 20th century, many rabbis were in favor of leniency. Moses Stern ruled that all young children were excluded from these strictures,[96] Obadiah Joseph made an exception for the ill,[97] and Joseph Chaim Sonnenfeld exempted nursing women.[98]