function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahyong, Shane T.', 4],
    ['Ahyong, Shane T. & Poore, Gary C. B.', 7],
    ['Baba, Keiji & Macpherson, Enrique & Poore, Gary C. B.', 15],
    ['Cabezas, Patricia & Macpherson, Enrique & Machordom, Annie', 3],
    ['De, Gustavo A. S. & Melo-Filho', 1],
    ['Guerao, Guillermo & Macpherson, Enrique & Samadi, Sarah', 1],
    ['Kilgour, Morgan J. & Shirley, Thomas C.', 2],
    ['Macpherson, Enrique & Baba, Keiji', 2],
    ['Mantelatto, Fernando L. & Miranda, Ivana & Vera-Silva, Ana L.', 1],
    ['Poore, Gary C. B. & Andreakis, Nikos', 18],
    ['Schmidt, Gustavo A. & Melo-Filho, De', 1],
    ['Vazquez-Bader, Ana Rosa & Gracia, Adolfo', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=56)',
    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);