Question: In Hong Kong, how many hospitals are private?
About the article "Hong Kong", section "Health".

Candidate passages:
There are 13 private hospitals and more than 40 public hospitals in Hong Kong.
There is little interaction between public and private healthcare.
The hospitals offer a wide range of healthcare services, and some of the territory's private hospitals are considered to be world class.
According to UN estimates, Hong Kong has one of the longest life expectancy of any country or territory in the world.
As of 2012, Hong Kong women are the longest living demographic group in the world.
There are two medical schools in the territory, one based at the Chinese University of Hong Kong and the other at the University of Hong Kong.
Both have links with public sector hospitals.
With respect to postgraduate education, traditionally many doctors in Hong Kong have looked overseas for further training, and many took British Royal College exams such as the MRCP(UK) and the MRCS(UK).
However, Hong Kong has been developing its own postgraduate medical institutions, in particular the Hong Kong Academy of Medicine, and this is gradually taking over the responsibility for all postgraduate medical training in the territory.
Since 2011, there have been growing concerns that mothers-to-be from mainland China, in a bid to obtain the right of abode in Hong Kong and the benefits that come with it, have saturated the neonatal wards of the city's hospitals both public and private.
This has led to protest from local pregnant women for the government to remedy the issue, as they have found difficulty in securing a bed space for giving birth and routine check-ups.
Other concerns in the decade of 2001–2010 relate to the workload medical staff experience; and medical errors and mishaps, which are frequently highlighted in local news.
Hong Kong's medical infrastructure consists of a mixed medical economy, with 12 private hospitals and more than 50 public hospitals.
There are also polyclinics that offer primary care services, including dentistry. 
Hong Kong's 12 private hospitals have partnered with the United Kingdom for international healthcare accreditation.
All 12 hospitals are "Trent Hospitals", having been surveyed and accredited by the United Kingdom's Trent Accreditation Scheme.
The Hong Kong Academy of Medicine is an independent institution with the statutory power to organise, monitor, assess and accredit all medical specialist training and to oversee the provision of continuing medical education in Hong Kong.
In addition, The Royal College of Physicians and Surgeons of Canada has also accredited the postgraduate medical education (1994–present) in Hong Kong and allowed these graduates from the Hong Kong Academy of Medicine seeking RCPSC Certification and practising in Canada. 
A Hong Kong Canadian is a Canadian who migrated to Canada from Hong Kong, or have origins in Hong Kong.
Hong Kong Canadians are mostly Cantonese, Hakka, Hoklo, Tanka by ancestry.
Many of the Hong Kong Canadians held multiple citizenship of Canada, Hong Kong and British National (Overseas) . 
Condominiums are known as "private housing estates" (as opposed to "public housing estates") in Hong Kong.