function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chergui, Isslam & Satour, Abdellatif & Bouzid, Abdelhakim', 16],
    ['Cohen, Rosa Graciela', 5],
    ['Cohen, Rosa Graciela & Marinone, María Cristina', 6],
    ['Cottarelli, Vezio & Aygen, Cem & Mura, Graziella', 3],
    ['Diaz, Analía R. & Álvarez, Victor Hugo Merlo', 8],
    ['Machado, Margarida & Sala, Jordi', 3],
    ['Rabet, Nicolas & Lacau, Sébastien & Bozelli, Reinaldo L.', 8],
    ['Rogers, Christopher & Gomes, João Pedro Corrêa & Vieira, Fabio', 9],
    ['Rogers, D. Christopher', 77],
    ['Rogers, D. Christopher & Dunn, Ann & Price, W. Wayne', 6],
    ['Rogers, D. Christopher & Hill, Matthew A.', 25],
    ['Sainz-Escudero, Lucía & Alonso, Miguel & Sánchez-Vialas, Alberto', 4],
    ['Timms, Brian V', 17],
    ['Timms, Brian V & Hudson, Peter', 5],
    ['Velu, Chinavenmeni S & Munuswamy, Natesan', 5],
    ['Other (31)', 51]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=248)',
    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);