“…Thirteen articles were published during 1973-1999, 3,8,14,17,[30][31][32][33][34][35][36][37][38] four articles during 2000-2009, [39][40][41][42] and nine articles during 2010-2016. [11][12][13][43][44][45][46][47][48] Sixteen articles came from the USA 3,8,13,14,17,30,31,[33][34][35][36][37][38][39]41,43 and the rest from Australia, 40 Canada, 32 Dominica, 11,46 Germany, 47 India, 45 the Netherlands, 48 South Africa 42,44 and the UK. 12 Of the 16 US articles, 12 were published prior to 2...…”