function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Golani, Daniel & Bogorodsky, Sergey V.', 1],
    ['RUSSELL, BARRY C. & WESTNEAT, MARK W.', 3],
    ['Randall, John Ernest Dr.', 1],
    ['Randall, John Ernest Dr. & Kotthaus, Adolf', 1],
    ['Russell, Barry C.', 5],
    ['Smith, J. L. B.', 1],
    ['TANG, Chi-Ngai & CHEN, Hong-Ming & HO, Husan-Ching', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=13)',
    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);