function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Geoffroy Saint-Hilaire, E.', 2],
    ['Hulke, John Whitaker', 1],
    ['Scavezzoni, Isaure & Fischer, Valentin & Johnson, Michela M.', 7],
    ['Wilberg, Eric W. & Godoy, Pedro L. & Griffiths, Elizabeth F.', 2],
    ['Young, Mark T. & Brusatte, Stephen L. & Ruta, Marcello', 1],
    ['Young, Mark T. & Wilberg, Eric W. & Johnson, Michela M.', 2],
    ['Zaher, Hussam & Pol, Diego & Carvalho, Alberto B.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=16)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);