Later this week Army Cpl. J.R. Martinez will leave his Dalton home for his next appointment with pain. Martinez will return to Brooke Army Medical Center in San Antonio for his 28th surgery. On April 5, 2003, the Humvee he was driving near Karbala, Iraq, triggered a land mine. The explosion trapped him inside the wreckage and burned more than 40 percent of his body, with the worst damage to his face and head. The next operation will involve doctors stretching what little good skin remains on the right side of his head around the back to the left side....