Stinson, Chairman of
the Board, and there will be presentations by Donald A. The webcast will be archived on our
website on the following business day, May 12, 2005 . (PMHX.rothcp.LoboPoker.

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Business Editors

TORONTO----Sun Life Financial Inc.

Prospect Medical Holdings to Present at Roth Capital Partners 17th Annual Growth Stock Conference

com/webcast/roth5 /pmhx.

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Sign up, register and get ready for some great poker
action.

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Once media have registered they are welcome to attend a press
conference, in the media room, to be held 20 minutes after the
conclusion of the meeting. A concentrated, two-day program will
allow institutional investors to meet the executives from a select
group of companies that have been hand picked by the Roth Capital
Partners research team. Information concerning
potential factors that could affect the Company is detailed from time to
time in the Company's reports filed with the Securities and Exchange
Commission .

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com.pk/

About the Roth Capital Partners 17th Annual Growth Stock
Conference

This conference will feature more than 220 leading growth
companies in sectors such as Technology, Healthcare, Financial
Services and Consumer Products. IPAs are professional corporations that contract with
independent physicians and other health care providers to create a
medical panel of primary care and specialist physicians, and other
health care service providers, capable of providing the full range of
medical services to individuals enrolled in health maintenance
organization ("HMO") managed care health plans .

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A link to our webcast
page, where you can access the webcast will be provided, along with
links to related information. There is absolutely no cost to play and
players are welcome to compete every night of the tournament.

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40% of this year's participating companies are
presenting here for the first time. is a health care management
services organization that provides management services primarily to
affiliated IPAs.

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Media Advisory: Sun Life Financial Inc. Annual Meeting

Senticore, Inc.

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PK) ("Prospect Medical"), a managed care
management company serving 10 affiliated Independent Physician
Associations ("IPAs") in Southern California, today announced that the
Company is scheduled to present at the Roth Capital Partners 17th
Annual Growth Stock Conference on Tuesday, February 22, 2005 at 11:30
am Eastern Time / 8:30 am Pacific Time.

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wsw.LoboPoker.

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William Stinson, Donald Stewart, Paul
Derksen and Ronald W.

To view the webcast and presentation slides, please visit our
website and double click the Annual Meeting link from the homepage 10
minutes prior to the start of the meeting.----Prospect
Medical Holdings , Inc.

For more information about the conference visit:
http://www. The lucky winner on June 30th will win a seat to
play in the World Series of Poker in Las Vegas this July, and become an
honorary member of Team Lobo.

To participate or learn more about the tournaments, go to
www.

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Stewart ,
Chief Executive Office and Paul W. Investors are
cautioned that forward-looking statements, including the statements
regarding anticipated or expected results and the future introduction
of new products , involve risks and uncertainties which may affect the
Company's business and prospects, including those outlined in the
Company's Form 10 and subsequently filed reports.

com.

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Derksen, Chief Financial Officer.prospectmedicalholdings.com beginning
on Friday, June 24th and continue for six consecutive nights with the
finale culminating on June 30th.

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(TSX:SLF)(NYSE:SLF)

Date: Wednesday, May 11, 2005

Time: 10:00 a. (EDT).

This press release contains forward -looking statements.

The Free Roll Poker Tournaments will be held at www.

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Senticore , Inc.

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The conference is being held
at the St. The winner of the tournament
will be awarded a highly coveted seat worth $10,000 to play in the World
Series of Poker.

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Media Registration:

Please RSVP to Amy Clark at 416-979-6087, no later than May 9,
2005. Certain of the statements contained
herein, which are not of historical facts, are forward-looking statements
with respect to events, the occurrence of which involve risks and
uncertainties.

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Prospect Medical will be presenting in the "Adriatic" room.
The presentation will also be broadcast live over the Internet via
the home page of Prospect Medical's website -
www. You can also access the webcast and
replay at http: //www.com/2005%20DP%20Conference%20Web%20Site/
Roth%20DP. The game is
No-Limit Texas Hold'em -- the hottest game in the country today.

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(EDT)

Location: Room 105, North Building, Metro Toronto Convention Centre
255 Front Street West, Toronto, Ontario

Media are invited to attend Sun Life Financial's Annual Meeting
to be held at the Metro Toronto Convention Centre, Toronto on
Wednesday, May 11, 2005, beginning at 10:00 a.

The meeting will be chaired by William W. (TSX:SLF) (NYSE:SLF)

Regis Monarch Beach Resort + Spa in Dana Point, CA.LoboPoker.

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Business Editors/Health/Medical Writers
Roth Capital Partners 17th Annual Growth Stock Conference

CULVER CITY, Calif. Statements contained herein that are not
historical facts are forward-looking statements . While we may elect to update
forward-looking statements at some point in the future, we
specifically disclaim any obligation to do so, even if our estimates
change.


Tournaments will be held every night at 9:00 pm EDT beginning on the 24th
of June.

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Osborne will be in attendance from Sun Life
Financial.

Sun Life Financial Inc. This closely mirrors the average and median market cap for
the proposed Russell Microcap(tm) Index which is expected to be around
$277 million and $176 million respectively.
To register for this conference, please contact your Roth sales
representative at 800-678-9147

Please note that this conference is by invitation only.)

ABOUT THE COMPANY

Prospect Medical Holdings, Inc. Additional
written or oral forward-looking statements may be made by the Company
from time to time, in filings with the Securities and Exchange
Commission or otherwise.

PRESS RELEASE Win LoboPoker's Free Tournament and Play in the World Series of Poker!

(OTC BB: SNIO), a publicly
traded holding company, has announced its sponsorship of the Free Roll
Tournaments being held at www.

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As in the past, cameras and recording devices will be
prohibited during the meeting itself. Any forward-looking
statements contained in this press release represent our estimates
only as of the date hereof, or as of such earlier dates as are
indicated, and should not be relied upon as representing our estimates
as of any subsequent date. The top ten players each night will advance to the final round to
be played on June 30th. These forward-looking statements may be impacted, either
positively or negatively, by various factors.

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The average market cap of this
year's presenters is around $330 million, with the median around $185
million.com. Somebody out there is going to Las Vegas. Maybe it'll be you!

Safe Harbor Statement:

The Private Securities Litigation Reform Act of 1995 provides a "safe
harbor" for forward-looking statements.

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To listen to the live call, go to the
website at least 15 minutes early to register, download and install
any necessary audio software.html?content=home (Due to the length of this URL, it may be
necessary to copy and paste this hyperlink into your Internet
browser's URL address field.

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---

- - kjjkjk

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