function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abé, Hiroshi', 91],
    ['BARTSCH, I.', 5],
    ['Bartsch, I.', 21],
    ['Bartsch, Ilse', 119],
    ['Cantallo, Harold & Gomes, Nuno & Antunes, Carlos', 6],
    ['Chatterjee, Tapas', 249],
    ['Chatterjee, Tapas & Durucan, Furkan', 104],
    ['Chatterjee, Tapas & Pfingstl, Tobias & Pešić, Vladimir', 30],
    ['Durucan, Furkan', 29],
    ['Durucan, Furkan & Paz, Juan Carlos De La', 11],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 7],
    ['Otto, Jürgen C.', 8],
    ['Pepato, Almir R. & Silveira, Paulo Sergio Amorim Da', 6],
    ['Pepato, Almir R. & Tiago, Cláudio G.', 11],
    ['Willmann, C.', 7],
    ['Other (16)', 36]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=740)',
    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);