Final answer:
The subject pronoun that a group of women would use to talk about themselves is 'nosotras'.
Step-by-step explanation:
The subject pronoun that a group of women would use to talk about themselves is nosotras. In the given sentence, 'somos médicas', 'somos' means 'we are', and since the group consists of women, the subject pronoun 'nosotras' is used. 'Nosotras' is the plural form of 'nosotra', which means 'we' in feminine form.
Learn more about Subject pronouns in Spanish