function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alonso, Miguel & Ventura, Marc', 2],
    ['Chergui, Isslam & Satour, Abdellatif & Bouzid, Abdelhakim', 1],
    ['Cohen, Rosa Graciela', 3],
    ['Diaz, Analía R. & Álvarez, Victor Hugo Merlo', 1],
    ['Rabet, Nicolas', 2],
    ['Rabet, Nicolas & Lacau, Sébastien & Bozelli, Reinaldo L.', 8],
    ['Rogers, Christopher & Gomes, João Pedro Corrêa & Vieira, Fabio', 9],
    ['Rogers, D. Christopher', 46],
    ['Rogers, D. Christopher & Dunn, Ann & Price, W. Wayne', 6],
    ['Sainz-Escudero, Lucía & Alonso, Miguel & Sánchez-Vialas, Alberto', 1],
    ['Soesbergen, Martin & Sinkeldam, Jos', 1],
    ['Timms, Brian V', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=88)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);