function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Balzan, L.', 3],
    ['Beier, Max', 4],
    ['Chamberlin, Joseph Conrad', 6],
    ['Ellingsen, Edvard', 3],
    ['Harvey, Mark S.', 4],
    ['Harvey, Mark S. & Edward, Karen L.', 9],
    ['Hoff, C. Clayton', 6],
    ['Hu, Junfang & Zhang, Feng', 3],
    ['Jeong, Kyung-Hoon & Harms, Danilo & Yoo, Jung-Sun', 3],
    ['Mahnert, Volker', 7],
    ['Mau, Sofía Amieva & Harvey, Mark S. & Harms, Danilo', 7],
    ['Muchmore, William B.', 7],
    ['Romero-Ortiz, Catalina & García, Fabian & Villarreal, Eduardo', 6],
    ['Zaragoza, Juan A.', 11],
    ['Zaragoza, Juan A. & Pérez, Toni', 4],
    ['Other (16)', 27]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=110)',
    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);