Macrophages directly contribute collagen to scar formation during zebrafish heart regeneration and mouse heart repair by Simoes, FC, Cahill, TJ, Kenyon, A, Gavriouchkina, D, Vieira, JM, Sun, X, Pezzolla, D, Ravaud, C, Masmanian, E, Weinberger, M, Mayes, S, Lemieux, ME, Barnette, DN, Gunadasa-Rohling, M, Williams, R, Greaves, DR, Trinh, LA, Fraser, SE, Dallas, SL, Choudhury, RP, Sauka-Spengler, T, Riley, PR