Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| No. in series | No. in season | Title | Directed by | Written by | Original air date | Production code | U.S. viewers (millions) |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 107.0 | 1.0 | "Touch Me I'm Going to Scream, Part 1" | Stuart Gillard | Mark Schwahn | September1,2008 | 3T7551 | 3.25 |
| 109.0 | 3.0 | "Get Cape. Wear Cape. Fly." | Liz Friedlander | Mark Schwahn | September15,2008 | 3T7553 | 3.37 |
| 110.0 | 4.0 | "Bridge Over Troubled Water" | Paul Johansson | Terrence Coli | September22,2008 | 3T7554 | 3.15 |
| 111.0 | 5.0 | "You've Dug Your Own Grave, Now Lie in It" | John Asher | William H. Brown | September29,2008 | 3T7555 | 3.42 |
| 112.0 | 6.0 | "Choosing My Own Way of Life" | Clark Mathis | John A. Norris | October13,2008 | 3T7556 | 3.47 |
| 113.0 | 7.0 | "Messin' with the Kid" | Greg Prange | Mike Herro & David Strauss | October20,2008 | 3T7557 | 3.70 |
| 114.0 | 8.0 | "Our Life is Not a Movie or Maybe" | Peter Kowalski | Mark Schwahn | October27,2008 | 3T7558 | 3.21 |
| 115.0 | 9.0 | "Sympathy for the Devil" | Bradley Walsh | Michael Daniels | November3,2008 | 3T7559 | 3.02 |
| 116.0 | 10.0 | "Even Fairy Tale Characters Would Be Jealous" | Janice Cooke | Nikki Schiefelbein | November10,2008 | 3T7560 | 3.00 |
| 117.0 | 11.0 | "We Three (My Echo, My Shadow and Me)" | Joe Davola | Chad Michael Murray | November17,2008 | 3T7561 | 2.72 |
| 119.0 | 13.0 | "Things a Mama Don't Know" | Michael J. Leone | Karin Gist | January5,2009 | 3T7563 | 2.66 |
| 120.0 | 14.0 | "A Hand to Take Hold of the Scene" | Chad Michael Murray | Mike Daniels | January12,2009 | 3T7564 | 3.06 |
| 121.0 | 15.0 | "We Change, We Wait" | Les Butler | John Norris | January19,2009 | 3T7565 | 2.60 |
| 122.0 | 16.0 | "Screenwriter's Blues" | Bethany Joy Galeotti | Mike Herro & David Strauss | February2,2009 | 3T7566 | 2.65 |
| 123.0 | 17.0 | "You and Me and the Bottle Makes Three Tonight" | Greg Prange | Terrence Coli | March16,2009 | 3T7567 | 2.41 |
| 124.0 | 18.0 | "Searching for a Former Clarity" | Joe Davola | Mark Schwahn | March23,2009 | 3T7568 | 2.40 |
| 125.0 | 19.0 | "Letting Go" | Paul Johansson | David Handelman | March30,2009 | 3T7569 | 2.36 |
| 126.0 | 20.0 | "I Would for You" | Peter B. Kowalski | Chris "CARM" Armstrong & Bryan Gracia | April20,2009 | 3T7570 | 2.45 |
| 127.0 | 21.0 | "A Kiss to Build a Dream On" | Erica Dunton | Karin Gist | April27,2009 | 3T7571 | 2.28 |
| 128.0 | 22.0 | "Show Me How to Live" | James Lafferty | William H. Brown | May4,2009 | 3T7572 | 2.23 |
| 129.0 | 23.0 | "Forever and Almost Always" | Greg Prange | Mark Schwahn | May11,2009 | 3T7573 | 2.30 |
Question:
Who were the authors  of episode having production code 3t7573?
Answer:
Mark Schwahn