function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Denis Geraards', 10],
    ['Don E. Wilson & Russell A. Mittermeier', 209],
    ['Geraads, Denis & Spassov, Nikolaï & Hristova, Latinka', 6],
    ['Güleç, Erksin Savaş & Sevim, Ayla & Pehlevan, Cesur', 7],
    ['Jackson, Stephen M. & Jansen, Justin J. F. J.', 9],
    ['James H. Honacki & Kenneth E. Kinman & James W. Koeppl', 171],
    ['Kostopoulos, Dimitrios S. & Bernor, Raymond L.', 30],
    ['Kostopoulos, Dimitris S.', 8],
    ['Kostopoulos, Dimitris S. & Karakütük, Seval', 12],
    ['Kostopoulos, Dimitris S. & Sen, Sevket', 8],
    ['Linnaeus, Carolus', 29],
    ['Pallas, Peter Simon', 14],
    ['Peter Grubb', 184],
    ['Wilson, Don E. & Reeder, DeeAnn', 285],
    ['Zimmermann, E. A. W.', 6],
    ['Other (52)', 104]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1092)',
    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);