Guidelines for DNA recombination and repair studies: mechanistic assays of DNA repair processes by Klein, HL, Ang, KKH, Arkin, MR, Beckwitt, EC, Chang, Y-H, Fan, J, Kwon, Y, Morten, MJ, Mukherjee, S, Pambos, OJ, Sayyed, H, Thrall, ES, Vieira-Da-Rocha, JP, Wang, Q, Wang, S, Yeh, H-Y, Biteen, JS, Chi, P, Heyer, W-D, Kapanidis, AN, Loparo, JJ, Strick, TR, Sung, P, Van Houten, B, Niu, H, Rothenberg, E