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Business law case study, the case is about the fight between Apple and FBI over the unlocking of an iPhone used by one of the terrorists in the 2015 San Bernardino attack. The authorities could not gain access to the iPhone due to the advanced encryption used by Apple to protect the privacy of its customers. But Apple declined to decrypt the phone and filed an appeal in court challenging an earlier order by a federal magistrate. Some critics opined that Apple just wanted to protect its brand image by declining to unlock the iPhone and had no interest in protecting the interests of customers.

127 What are the diagnostic criteria of 'definitive' multiple sclerosis (MS) - as taught to a medical student? We have found different information from different sources.

128 How reliable is a CT-brain scan with contrast in showing MS lesions as enhancing lesions in the presence of a contraindication to use MRI?

129 Is magnetic resonance (MR) spectroscopy of value in differentiating multiple sclerosis from cerebral autosomal dominant arteriopathy with subcortical infarctions (CADASIL)?

130 Does hemiplegia due to multiple sclerosis present with hemiparesis rather than dense hemiplegia (which is more characteristic of a stroke)? Other than age, what are the clinical signs that would help differentiate between the two?

131 If a female patient with multiple sclerosis wants to become pregnant, what are the risks, family planning advice and treatment, etc? What is the best advice to give to her?

132 Is there a role for methotrexate and azathioprine in the treatment of remitting-relapsing multiple sclerosis?

133 Do steroids have a role in preventing or ameliorating the relapses in relapsing-remitting multiple sclerosis?

134 Has cyclophosphamide a role in decreasing the rate and number of relapses in relapsing-remitting multiple sclerosis?

135 Is there evidence of the efficacy of cyclic pulse cyclophosphamide therapy in the treatment of relapsing-remitting multiple sclerosis?

136 Glatiramer acetate and interferon-beta are recommended by some people for the treatment of multiple sclerosis. Which drug should I use for a patient with a 2-year history of relapsing-remitting MS.

137 1. Most neurological books available to me say that high-dose IV dexamethasone can be used in acute relapses of multiple sclerosis (MS). What is the recommended dosage and regimen for this drug? 2. I understand that depot preparations of betamethasone (Depofos) can also be used in acute relapses of MS, as well as treatment for idiopathic Bell's palsy. If so, can you tell me the recommended dosage and regimen for this drug?

138 What are the most common causes of chronic meningitis and what investigations must be done?