function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Calder, Dale R.', 10],
    ['Calder, Dale R. & Choong, Henry H. C.', 2],
    ['Calder, Dale R. & Faucci, Anuschka', 3],
    ['Choong, Henry H. C.', 8],
    ['Galea, Horia R.', 30],
    ['Galea, Horia R. & Schories, Dirk', 8],
    ['Galea, Horia R. & Schories, Dirk & Försterra, Günter', 4],
    ['Galea, Horia R. & Schuchert, Peter', 8],
    ['Gil, Marta & Ramil, Fran', 4],
    ['Gravili, Cinzia & Vito, Doris De & Camillo, Cristina Gioia Di', 5],
    ['Horia R. Galea & Dirk Schories & Verena Häussermann', 33],
    ['Moura, Carlos J.', 3],
    ['OLIVEIRA, OTTO M. P. & MIRANDA, THAÍS P. & ARAUJO, ENILMA M.', 41],
    ['Schejter, L. & Genzano, G. & Pérez, C. D. & Acuña, F.', 4],
    ['Watson, Jeanette E.', 6],
    ['Other (8)', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=179)',
    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);