RESULTS	In the TAM group , ER and PR values ( mean + / - standard error of the mean [ SEM ] fmol/mg DNA ) in the second FNA samples were 605 + / - 186 and 1130 + / - 344 , respectively , and were significantly higher ( P < 0.05 ) than ER and PR values in the first FNA samples , which were 312 + / - 74 and 639 + / - 159 , respectively .\