See ISPE Guidelines 4.21. [Rule 5.1(b); ]
Source: http://www.epo.org/law-practice/legal-texts/html/guidelinespct/e/f_ii_4_9.htm
Date retrieved: 17 May 2021
Source: http://www.epo.org/law-practice/legal-texts/html/guidelinespct/e/f_ii_4_9.htm
Date retrieved: 17 May 2021