function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arguez, Katherine M. & Moore, Matthew R. & Branham, Marc A.', 2],
    ['Dutrillaux, Anne-Marie & Mamuris, Zissis & Dutrillaux, Bernard', 1],
    ['Gasca-Álvarez, Héctor & Amat-García, Germán', 1],
    ['Gillett, Conrad P. D. T. & Gillett, Michael P. T.', 1],
    ['Grossi, Paschoal Coelho & Saltin, Jochen-P.', 4],
    ['Hielkema, Auke J. & Hielkema, Meindert A.', 11],
    ['Ibarra-Polesel, Mario G. & Valle, Nestor G.', 1],
    ['Ratcliffe, Brett C.', 5],
    ['Ratcliffe, Brett C. & Cave, Ronald D.', 3],
    ['Taboada-Verona, Carlos & Sermeño-Correa, Carlos', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=31)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);