function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Crottini, Angelica & Rosa, Goncalo M. & Penny, Samuel G.', 1],
    ['Glaw, Frank & Vallan, Denis & Andreone, Franco & Edmonds, Devin', 1],
    ['Klages, Johannes & Glaw, Frank & Köhler, Jörn & Müller, Johannes', 1],
    ['Mullin, Katherine E. & Rakotomanga, Manoa G. & Dawson, Jeff', 1],
    ['Rakotoarison, Andolalao & Glaw, Frank & Rasolonjatovo, Safidy M.', 1],
    ['Rakotoarison, Andolalao & Scherz, Mark D. & Glaw, Frank', 26]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=31)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);