function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Balzan, L.', 35],
    ['Banks, Nathan', 9],
    ['Beier, Max', 54],
    ['Ellingsen, Edvard', 35],
    ['Hernández-Corral, Jesús & Zaragoza, Juan A. & Micó, Estefanía', 9],
    ['Hoff, C. Clayton', 16],
    ['Koch, Ludwig Carl Christian', 10],
    ['Nonidez, José F.', 9],
    ['Novák, János', 10],
    ['Novák, János & Dányi, László', 10],
    ['Redikorzev, V.', 15],
    ['Simon, Eugène', 19],
    ['Thorell, Tord Tamerlan Teodor', 10],
    ['Tullgren, Albert', 21],
    ['With, Carl Johannes', 35],
    ['Other (52)', 111]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=408)',
    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);