function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Blume, Carl Ludwig von', 1],
    ['Calder, Dale R.', 1],
    ['Calder, Dale R. & Faucci, Anuschka', 1],
    ['Cornejo, Xavier & Lombardi, Julio A.', 1],
    ['Coughenour, Jennifer M. & Simmons, Mark P. & Lombardi, Julio A.', 3],
    ['Galea, Horia R.', 2],
    ['Galea, Horia R. & Schuchert, Peter', 2],
    ['Jarvis, Charlie', 1],
    ['Jongkind, Carel C. H.', 1],
    ['Mendonça, Luana Marina de Castro', 1],
    ['Merrill, Elmer Drew & Perry, Lily May', 1],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 3],
    ['OLIVEIRA, OTTO M. P. & MIRANDA, THAÍS P. & ARAUJO, ENILMA M.', 2],
    ['Peekel, Gerhard', 1],
    ['Pham, Ngoc Hoai & Ren, Ming-Xun & Nuraliev, Maxim S.', 1],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=23)',
    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);