function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brignon, Arnaud', 1],
    ['Campos, Lisandro & Fernández, Marta S. & Herrera, Yanina', 1],
    ['De la Beche, H. T. & Conybeare, W. D.', 1],
    ['Fröbisch, Nadia B. & Sander, P. Martin & Rieppel, Olivier', 4],
    ['Laboury, Antoine & Bennion, Rebecca F. & Thuy, Ben', 3],
    ['Lomax, Dean & Massare, Judy', 1],
    ['Lomax, Dean R. & de la Salle, Paul & Perillo, Marcello', 1],
    ['Massare, Judy A. & Lomax, Dean R.', 2],
    ['Maxwell, Erin Elysse & Fernández, Marta Susana', 1],
    ['Roberts, Aubrey Jane & Engelschiøn, Victoria Sjøholt', 3],
    ['Sander, P. Martin & Griebeler, Eva Maria & Klein, Nicole', 2],
    ['Zverkov, Nikolay G. & Jacobs, Megan L.', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=26)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);