function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Balzan, L.', 56],
    ['Batuwita, Sudesh & Benjamin, Suresh P.', 48],
    ['Beier, Max', 536],
    ['Chamberlin, Joseph Conrad', 119],
    ['Ellingsen, Edvard', 52],
    ['Gardini, Giulio', 135],
    ['Harvey, Mark S.', 69],
    ['Hoff, C. Clayton', 119],
    ['Mahnert, Volker', 87],
    ['Mahnert, Volker & Iorio, Osvaldo Di & Turienzo, Paola', 89],
    ['Muchmore, William B.', 94],
    ['Novák, János', 72],
    ['Novák, János & Dányi, László', 56],
    ['Romero-Ortiz, Catalina & García, Fabian & Villarreal, Eduardo', 80],
    ['Zaragoza, Juan A.', 101],
    ['Other (207)', 1139]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=2852)',
    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);