or both; and, optionally(The invention thus further provides a pharmaceutical composition comprising the cystamine analogues or a pharmaceutically acceptable salt of the present invention thereof together with one or more pharmaceutically acceptable carriers therefore and, optionally, other therapeutic and/or prophylactic ingredients.); either or both(напр., either or both device and mechanism: устройство и/или механизм); one or both(one or both of А and B: А и/или В)
