(b) The right to freedom of expression; (c) The right to peaceful assembly; (d) The right to own property alone as well as in association with others, subject to domestic law. 3. Subject to the provisions referred to in paragraph 2, aliens lawfully in the territory of a State shall enjoy the right to liberty of movement and freedom to choose their residence within the borders of the State. 4. Subject to national legislation and due authorization, the spouse and minor or dependent children of an alien lawfully residing in the territory of a State shall be admitted to accompany, join and stay with the alien. Article 6 No alien shall be subjected to torture or to cruel, inhuman or degrading treatment or punishment and, in particular, no alien shall be subjected without his or her free consent to medical or scientific experimentation. Article 7 An alien lawfully in the territory of a State may be expelled therefrom only in pursuance of a decision reached in accordance with law and shall, except where compelling reasons of national security otherwise require, be allowed to submit the reasons why he or she should not be expelled and to have the case reviewed by, and be represented for the purpose before, the competent authority or a person or persons specially designated by the competent authority. Individual or collective expulsion of such aliens on grounds of race, colour, religion, culture, descent or national or ethnic origin is prohibited. Article 8 1. Aliens lawfully residing in the territory of a State shall also enjoy, in accordance with the national laws, the following rights, subject to their obligations under article 4: (a) The right to safe and healthy working conditions, to fair wages and equal remuneration for work of equal value without distinction of any kind, in particular, women being guaranteed conditions of work not inferior to those enjoyed by men, with equal pay for equal work; (b) The right to join trade unions and other organizations or associations of their choice and to participate in their activities. No restrictions may be placed on the exercise of this right other than those prescribed by law and which are necessary, in a democratic society, in the interests of national security or public order or for the protection of the rights and freedoms of others; (c) The right to health protection, medical care, social security, social services, education, rest and leisure, provided that they fulfil the requirements under the relevant regulations for participation and that undue strain is not placed on the resources of the State.