British Embassy staff to march, promote LGBT rights
Scotland-based LGBT group issues report
Cost cited as main reason for delay
Some argue monogamous gay couples should be exempt
Vaccination protects from various forms of cancer
Pot, poppers and Viagra common in Brit participants
More likely to face psychological problems than straights
Aimed at reducing HIV infection during 'chemsex'
Disproportionately affected by poor sexual, mental health
Meth among drugs cited in report
