function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brandt, Ioanne Friderico', 6],
    ['Chang, Hsueh-Wen', 9],
    ['Enghoff, Henrik', 6],
    ['Golovatch, Sergei', 6],
    ['Golovatch, Sergei & Mauriès, Jean-Paul & Akkari, Nesrine', 13],
    ['Golovatch, Sergei I. & Geoffroy, Jean-Jacques', 9],
    ['Golovatch, Sergei I. & Liu, Weixin & Geoffroy, Jean-Jacques', 17],
    ['Haľkova, Beata & Drabova, Martina & Mock, Andrej', 9],
    ['Likhitrakarn, Natdanai & Golovatch, Sergei I. & Panha, Somsak', 12],
    ['Likhitrakarn, Natdanai & Srisonchai, Ruttapon & Siriwut, Warut', 10],
    ['Liu, Weixin & Tian, Mingyi', 7],
    ['Liu, Weixin & Wynne, J. Judson', 9],
    ['Nguyen, Anh D. & Sierwald, Petra & Marek, Paul E.', 24],
    ['Wesener, Thomas', 8],
    ['Wilbrandt, Jeanne & Lee, Paul & Read, Helen & Wesener, Thomas', 12],
    ['Other (21)', 41]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=198)',
    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);