function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Badano, Davide & Acevedo, Fernando & Pantaleoni, Roberto A.', 1],
    ['Badano, Davide & Pantaleoni, Roberto Antonio', 9],
    ['Hassan, Muhammad Asghar & Oswald, John D. & Zia, Ahmed', 8],
    ['Hassan, Muhammad Asghar & Zheng, Yuchen & Liu, Xingyue', 10],
    ['Letardi, Agostino', 2],
    ['Miller, Robert B. & Stange, Lionel A.', 4],
    ['Pantaleoni, Roberto A. & Loru, Laura', 2],
    ['Petersen, Nicholas Hüsig & Nielsen, Ole Fogh & Vilhelmsen, Lars', 2],
    ['Rambur, Jules Pierre', 1],
    ['Stange, Lionel A. & uary, Jan', 2],
    ['Tillier, Pierre', 1],
    ['Walker, Francis', 15],
    ['Zhang, Jie & Zhang, Xubo & Wang, Xinli', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=58)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);