function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Allen, Gerald R. Dr.', 10],
    ['Allen, Gerald R. Dr. & Hoese, Douglass F.', 6],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 7],
    ['Angulo, Arturo', 18],
    ['Angulo, Arturo & Betts, Joel T. & González-Alemán, Néstor J.', 15],
    ['Bleeker, Pieter', 25],
    ['De Vis, Charles Walter', 5],
    ['Herre, Albert W. C. T.', 13],
    ['Macleay, William John', 6],
    ['Mennesson, Marion I. & Keith, Philippe', 7],
    ['Morgan, David L. & Allen, Gerald R. & Pusey, Bradley J.', 10],
    ['Sauvage, H. E.', 8],
    ['Steindachner, F.', 7],
    ['Stephen J. Walsh & Prosanta Chakrabarty', 7],
    ['Whitley, Gilbert P.', 6],
    ['Other (89)', 138]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=288)',
    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);