function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ao, Weiguang & Wan, Xia & Wang, Xinli', 11],
    ['Badano, Davide & Pantaleoni, Roberto Antonio', 57],
    ['Hassan, Muhammad Asghar & Oswald, John D. & Zia, Ahmed', 70],
    ['Hassan, Muhammad Asghar & Zheng, Yuchen & Liu, Xingyue', 18],
    ['Krivokhatsky, Victor & Dobosz, Roland & Ábrahám, Levente', 9],
    ['Machado, Renato Jose Pires & Oswald, John David', 98],
    ['Mansell, Mervyn W.', 20],
    ['Michel, Bruno', 11],
    ['Michel, Bruno & Akoudjin, Massouroudini', 15],
    ['Michel, Bruno & Mansell, Mervyn W.', 11],
    ['Miller, Robert B. & Stange, Lionel A.', 100],
    ['Stange, Lionel A. & Miller, Robert B.', 20],
    ['Stange, Lionel A. & uary, Jan', 16],
    ['Tavares, Leon Gustavo de Miranda & Machado, Renato Jose Pires', 13],
    ['Walker, Francis', 15],
    ['Other (53)', 164]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=648)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);