DUBAI, Sept 22 (Reuters) - Here are some factors that may affect Middle East stock markets on Monday. Reuters has not verified the press reports and does not vouch of their accuracy.INTERNATIONAL/REGIONAL* GLOBAL MARKETS-Asian shares slip, dollar pulls away from highs MKTS/GLOB* Brent falls back below $98 on sluggish demand, ample supply O/R* MIDEAST STOCKS-Most markets pull back after strong gain