Hold on to these high p/e growth stocks

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INTUITIVE SURGICAL $397.47 (Nasdaq symbol ISRG; TSINetwork Rating: Average) (515-507-5000; www.intuitivesurgical.com; Shares outstanding: 40.3 million; Market cap: $14.7 billion; No dividends paid) makes the “da Vinci,” a computerized surgical system. Guided by a miniature camera connected to a 3-D monitor, surgeons use the da Vinci to operate by remotely manipulating tiny robotic arms. This process is safer and far less invasive than regular surgery, and helps cut a patient’s recovery time and post-operative discomfort. It also reduces scarring and the risk of infection. In the three months ended June 30, 2011, Intuitive earned $117.4 million, or $2.99 a share. That’s up 32.4% from $88.7 million, or $2.26 a share, a year earlier. Revenue rose 21.4%, to $425.7 million from $350.7 million. Revenue from replenishable supplies rose 35%. Intuitive gets over half of its revenue from stable and steady sales of replacement parts, training and other services. That cuts its risk. The company spends a high 8% of its revenue on research. Intuitive is debt-free,…