1 Myotonic (also called MMD or Steinert's disease). 2  The most common form of muscular dystrophy in adults, myotonic muscular dystrophy affects both men and women, and it usually appears any time from early childhood to adulthood. 3  In rare cases, it appears in newborns (congenital MMD).
There are around 66 scientific bases in Antarctica, of which about 37 are occupied year round. There are about 4,000 people through the summer months and about 1,000 overwinter each year.
About 15,000 tourists have seen Antarctica from the air. Ship-borne Tourists Top. Ship visits by tourists also began in the 1950s with an Argentinian vessel which took 100 passengers to the Argentinian territory on the Antarctic Peninsula. In 1968 the Ross Dependency was visited by a chartered boat with 24 people.t is a magnificent and largely uninhabited wilderness with majestic mountains, glaciers, icebergs and abundant wildlife. Its remoteness, inaccessibility and severe climate add an element of adventure to a visit to Antarctica. Tourists enjoy lunch on stern deck of cruise vessel, Antarctic Peninsula.