function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bippus, Maik', 2],
    ['Cock, Matthew J. W.', 1],
    ['Diakonoff, A.', 1],
    ['Doorenweerd, Camiel & Austin, Kyhl A. & Rubinoff, Daniel', 1],
    ['Dugdale, John S.', 2],
    ['Fernández-Yépez, A.', 1],
    ['Matthew J. Medeiros & Griffin L. Bianchi & Laurel R. Taschetta', 6],
    ['Medeiros, Matthew J. & Bianchi, Griffin L.', 2],
    ['Meyrick, E.', 1],
    ['Meyrick, Edward', 2],
    ['Philpott, Alfred', 1],
    ['Pohl, Greg & Anweiler, Gary & Schmidt, Christian', 1],
    ['Qian, Shuonan & Li, Houhun', 11],
    ['Rybalkin, S. A. & Benedek, B. & Dubatolov, V. V.', 1],
    ['Young, James D. & Robertson, James A.', 3],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=38)',
    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);