function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Denny, Henry', 1],
    ['Howell, Lindsey & Jelden, Katelyn & Rácz, Elizabeth', 1],
    ['Kazim, Abdul-Rahman & Houssaini, Jamal & Tappe, Dennis', 22],
    ['Ošlejšková, Lucie & Krištofík, Ján & Trnka, Alfréd', 8],
    ['Palma, Ricardo L. & Peck, Stewart B.', 1],
    ['Perez-Gelabert, Daniel E.', 1],
    ['Reeves, Will K. & Durden, Lance A. & Ritzi, Christopher M.', 8],
    ['Reeves, Will K. & Durden, Lance A. & Wrenn, William J.', 8],
    ['Sánchez-Montes, Sokani & Colunga-Salas, Pablo', 90]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=140)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);