function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albano, Paolo G. & Schnedl, Sara-Maria & Janssen, Ronald', 1],
    ['Bronn, Heinrich Georg', 1],
    ['Costa, Dimitri de Araujo & Dolbeth, Marina & Prata, Jessica', 1],
    ['Ivanova, Mariya B. & Tsurpalo, Alexandra P.', 1],
    ['Jirapatrasilp, Parin & Cuny, Gilles & Kocsis, László', 1],
    ['Makiyama, Jirô', 1],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 1],
    ['Oliver, P. Graham & Holmes, Anna & Killeen, Ian & Light, Janice', 1],
    ['Pacaud, Jean-Michel', 1],
    ['Romera, Barbara L. V. & Simone, Luiz R. L. & Cunha, Carlo M.', 1],
    ['Smith, Edgar A.', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=16)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);