In addition to their work on the employment of women, the Federation examined varied aspects of women's health during the inter-war years. Issues included venereal disease,[8] nutrition, lunacy law reform, the fitness of women to pilot commercial aeroplanes, the menopause, and guidance on the hygiene of menstruation (a Federation pamphlet on this subject sold 10,000 copies in a single year).[2] In 1921, the Association of Medical Women in India became affiliated to the Federation, and the improvement of women's health in India was a Federation campaign.[2] Another particular focus during this period was sexual health. In 1921, a subcommittee was appointed to discuss birth control, a topic that was much discussed at the time in light of the campaigning of Marie Stopes.[2] By 1931, a resolution was passed stating that instruction in the provision of birth control should be included in medical schools' gynaecological syllabus.