function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bergh, Eugene W. & Compton, John S.', 4],
    ['Brady, H. B.', 12],
    ['Canepari, Claudio & Gordon, Robert D. & Hanley, Guy A.', 228],
    ['Gordon, Robert D. & Canepari, Claudio & Hanley, Guy A.', 1],
    ['Ismail, Ahmed A.', 9],
    ['Mamo, Briony L.', 5],
    ['Moreau, Jean-David & Néraudeau, Didier & Philippe, Marc', 1],
    ['Schlagintweit, Felix', 3],
    ['Scott, David B. & Takayangi, Yokichi & Hasegawa, Shiro', 1],
    ['Sen, Areen & Saha, Ratul & Sivakumar, Kuppuswamy', 1],
    ['Symphonia, Tabita K. & Senthil, Nathan D.', 15],
    ['Szawaryn, Karol & Czerwiński, Tomasz', 2],
    ['Vachard, Daniel & Krainer, Karl & Lucas, Spencer G.', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=286)',
    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);