function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Eusébio, Rita & Sendra, Alberto & Enghoff, Henrik', 17],
    ['Graening, G. O. & Shcherbanyuk, Yana & Arghandiwal, Maryam', 78],
    ['Montejo-Cruz, Maira & García-Gómez, Arturo', 7],
    ['Sendra, Alberto & Antić, Dragan & Barranco, Pablo & Borko, Špela', 121],
    ['Sendra, Alberto & Arnedo, Miquel A. & Ribera, Carles', 5],
    ['Sendra, Alberto & Jiménez-Valverde, Alberto & Gilgado, José D.', 15],
    ['Sendra, Alberto & Komerički, Ana & Lips, Josiane & Luan, Yunxia', 16],
    ['Sendra, Alberto & Palacios, Jose & Garcia, Arturo', 7],
    ['Sendra, Alberto & Reboleira, Ana Sofia P. S.', 194],
    ['Sendra, Alberto & Sket, Boris & Stoev, Pavel', 4],
    ['Sendra, Alberto & Sánchez-García, Alba & Selfa, Jesús', 4],
    ['Sendra, Alberto & Weber, Dieter', 5],
    ['Sánchez-García, Alba & Sendra, Alberto & Davis, Steven', 5],
    ['Tusun, Sadreddin & Satar, Ali', 38],
    ['Tusun, Sadreddin & Özbay, Cengizhan', 16],
    ['Other (20)', 32]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=564)',
    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);