function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Calder, Dale R.', 27],
    ['Calder, Dale R. & Choong, Henry H. C.', 9],
    ['Cantero, A. L. Peña & Vervoort, W.', 23],
    ['Galea, Horia R.', 82],
    ['Galea, Horia R. & Maggioni, Davide', 11],
    ['Galea, Horia R. & Schories, Dirk', 22],
    ['Galea, Horia R. & Schuchert, Peter', 23],
    ['Gil, Marta & Ramil, Fran', 14],
    ['Horia R. Galea & Dirk Schories & Verena Häussermann', 33],
    ['Linnaeus, Carolus', 45],
    ['OLIVEIRA, OTTO M. P. & MIRANDA, THAÍS P. & ARAUJO, ENILMA M.', 131],
    ['Peña Cantero, Álvaro L. & Marzal, Marina Fresneda', 10],
    ['Peña, Álvaro L.', 19],
    ['Soto, Joan J. & Peña, Álvaro L.', 26],
    ['ÁLVARO L. PEÑA CANTERO', 34],
    ['Other (28)', 95]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=604)',
    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);