For AstraZeneca's operations in Gothenburg, Södertälje, and Stockholm, identify what each site specializes in and the approximate number of employees at each location. Additionally, summarize AstraZeneca AB's overall significance in Sweden based on their product sales, R&D costs, and number of registered shareholders.
Navigate to 'astrazeneca.se'. Go to the 'Verksamheten i Sverige' page. Note the overall significance figures (product sales, R&D costs, shareholders). Navigate to the 'Göteborg' page. Identify Gothenburg's specialization and approximate number of employees. Navigate back to the 'Verksamheten i Sverige' page. Navigate to the 'Södertälje' page. Identify Södertälje's specialization and approximate number of employees. Navigate back to the 'Verksamheten i Sverige' page. Navigate to the 'Stockholm' page. Identify Stockholm's specialization and approximate number of employees. Synthesize all collected information to answer the task.
State that Gothenburg specializes in Research & Development (R&D) with approximately 3,100 employees. State that Södertälje specializes in Manufacturing with approximately 4,700 employees. State that Stockholm specializes in Commercial Operations/Marketing (Nordic marketing company) with approximately 550+ employees. Summarize AstraZeneca AB's overall significance in Sweden, including product sales (168 billion SEK), R&D costs (34 billion SEK), and the number of registered shareholders (158,000).