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   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt"&gt;&lt;b&gt;6. Investment in Unconsolidated Joint Ventures&lt;/b&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; margin-left: 1%"&gt;&lt;i&gt;State Pension Fund Investor&lt;/i&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;In January&amp;#160;2007, we entered into a joint venture with a state pension fund investor. The
   purpose of the joint venture is to acquire and develop assisted living, independent living and
   skilled nursing facilities. We manage and own 25% of the joint venture, which will fund its
   investments with approximately 40% equity contributions and 60% debt. The original approved
   investment target was $475.0&amp;#160;million, but we exceeded that amount in 2007, and the total potential
   investment amount has been increased to $975.0&amp;#160;million. The financial statements of the joint
   venture are not consolidated in our financial statements as our joint venture partner has
   substantive participating rights, and accordingly our investment is accounted for using the equity
   method.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;At March&amp;#160;31, 2010, the joint venture owned 19 assisted and independent living facilities, 14
   skilled nursing facilities and one continuing care retirement community located in nine states.
   &lt;/div&gt;
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   &lt;b&gt;
   &lt;/b&gt;
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   &lt;b&gt;
   &lt;/b&gt;
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   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;During January&amp;#160;2008, the joint venture entered into an interest rate swap contract that is
       designated as effectively hedging the variability of expected cash flows related to variable rate
       debt placed on a portion of its portfolio. The cash flow hedge has a fixed rate of 4.235%, a
       notional amount of $126.1&amp;#160;million and expires on January&amp;#160;1, 2015. The fair value of this contract
       at March&amp;#160;31, 2010 and December&amp;#160;31, 2009 was $9.9&amp;#160;million and $8.2&amp;#160;million, respectively, which is
       included in accrued liabilities on the joint venture&amp;#8217;s balance sheet.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;Cash distributions from the joint venture are made in accordance with the members&amp;#8217; ownership
       interests until specified returns are achieved. As the specified returns are achieved, we will
       receive an increasing percentage of the cash distributions from the joint venture. During the three
       months ended March&amp;#160;31, 2010, we received distributions of $0.7&amp;#160;million from the joint venture. In
       addition to our share of the income, we receive a monthly management fee calculated as a percentage
       of the equity investment in the joint venture. This fee is included in our income from
       unconsolidated joint ventures and in the general and administrative expenses on the joint venture&amp;#8217;s
       income statement. During the three months ended March&amp;#160;31, 2010 and 2009, we earned management fees
       of $1.1&amp;#160;million and $1.0&amp;#160;million, respectively. During each of the three months ended March&amp;#160;31,
       2010 and 2009, our share of the net income was $0.2&amp;#160;million.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; margin-left: 1%"&gt;&lt;i&gt;PMB Real Estate Services LLC&lt;/i&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;In February&amp;#160;2008, we entered into an agreement with Pacific Medical Buildings LLC to acquire a
       50% interest in PMBRES, a full service property management company. The transaction closed on April
       1, 2008. In consideration for the 50% interest, we paid $1.0&amp;#160;million at closing, and we will make
       additional payments on or before March&amp;#160;31, 2010 and 2011 equal to six times the normalized net
       operating profit of PMBRES for 2009 and 2010, respectively (in each case, less the amount of all
       prior payments). During 2009, PMBRES had a normalized net operating loss, and as such, no
       additional payment was made during the three months ended March&amp;#160;31, 2010. PMBRES provides property
       management services for 32 multi-tenant medical office buildings that we own or in which we have an
       ownership interest. During the three months ended March&amp;#160;31, 2010, our share of the net income was
   $28,000. During the three months ended March&amp;#160;31, 2009, our share of the net loss was $0.2&amp;#160;million.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; margin-left: 1%"&gt;&lt;i&gt;PMB SB 399-401 East Highland LLC&lt;/i&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;In August&amp;#160;2008, we acquired from PMB SB (an entity affiliated with Pacific Medical Buildings
       LLC) a 44.95% interest in an entity that owned two multi-tenant medical office buildings for $3.5
   million. As of March&amp;#160;1, 2010, we acquired the remaining 55.05% interest in PMB SB. PMB SB was
       valued at $17.4&amp;#160;million at the date of acquisition, and the acquisition was paid in a combination
       of cash and the assumption of $11.2&amp;#160;million of mortgage financing (of which $6.2&amp;#160;million was
       previously attributable to the controlling interest in PMB SB). Prior to the acquisition, our
       investment in PMB SB was $3.0&amp;#160;million which was accounted for under the equity method. In
       connection with the acquisition, we re-measured our previously held equity interest at the
       acquisition date fair value based on an independent consultant&amp;#8217;s report and recognized a net gain
       on the re-measurement of $0.6&amp;#160;million which is included in the caption &amp;#8220;Interest and other income&amp;#8221;
       on our consolidated income statements. Subsequent activity related to these facilities is included
       in our consolidated activity for wholly owned real estate properties (see Note 3).
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;During the period from January&amp;#160;1, 2010 to February&amp;#160;28, 2010, we received distributions of $0.1
   million from PMB SB. During the period from January&amp;#160;1, 2010 to February&amp;#160;28, 2010, our share of the
       net income was $12,000. During the three months ended March&amp;#160;31, 2009, our share of the net income
       was $21,000.
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 -Publisher AICPA
 -Name Accounting Principles Board Opinion (APB)
 -Number 18
 -Paragraph 20

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