function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aleffi, Michele & Tacchi, Roberta & Poponessi, Silvia', 1],
    ['Erata, Hüseyin & Özen, Öznur & Batan, Nevzat & Alataş, Mevlüt', 2],
    ['Gomes do Nascimento, Géssica Maria', 11],
    ['Ivanets, Viktoria & Wierzgoń, Mariusz & Yevchun, Hanna', 4],
    ['Larraín, Juan & Cano, María J. & Jiménez, Juan A.', 1],
    ['Liu, Yong-Ying & Quan, Yu-Ping & Wu, Yu-Huan', 2],
    ['Melamed, Dror & Segarra-Moragues, José Gabriel', 1],
    ['Oliveira, Regigláucia Rodrigues de', 2],
    ['Osman, Imen Ben & Hugonnot, Vincent & Muller, Serge D.', 2],
    ['Papp, Beáta & Pantović, Jovana & Sabovljević, Marko S.', 2],
    ['Price, Michelle J.', 8],
    ['Robinson, Harold & Golinski, G. Karen', 3],
    ['Schäfer-VERwIMP, Alfons & VERwIMP, Inge', 6],
    ['Spence, John R.', 37],
    ['Sérgio, Cecília & Garcia, César A. & Porley, Ron D.', 2],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=88)',
    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);